Infernal Devices, Cassandra Clare Crossovers
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All In This Together by yatypicalfangirl reviews
AU. In the city of Alicante, Clary Fray lives next-door to the Lightwood's and Jace Herondale. Two gangs; Clary's and Jace's. What made the childhood friends rivals? What's the story behind Clary's dead brother? Is Tessa falling for Jace's cousin, Will Herondale, or the sweet new boy, Jem? High school drama, a Shakespeare play and old secrets from The Circle return to Alicante...
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: K+ - English - Romance/Humor - Chapters: 4 - Words: 8,644 - Reviews: 4 - Favs: 7 - Follows: 5 - Updated: 4/20 - Published: 2/18 - Clary F., Jace W., Tessa G., Will H.
Neighbours by teebug reviews
Clary has to move again due to her mother's disastrous taste in men, but she soon discovers there is a very attractive boy next door that she just can not stop thinking about. All characters owned by Cassandra Clare. Au Clace eventually
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Romance - Chapters: 2 - Words: 1,679 - Reviews: 5 - Favs: 5 - Follows: 6 - Updated: 4/17 - Published: 8/21/2016
This Modern Fuck Up by trifangirls
What if Jace wasn't the cool kid? What if Clary was hiding something? What if they both were?
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: K+ - English - Chapters: 2 - Words: 1,574 - Follows: 1 - Updated: 4/15 - Published: 4/12 - Clary F., Jace W., Will H., Jem C.
London Gray by nerdyfangirl34 reviews
Tessa Gray was perfectly fine with her life in New York. She had an aunt that loved her, friends, a brother. Now everything seems to change as the death of her aunt rattles her steady life. Her brother shuts her out and sends her to a boarding school in London, away from her friends. How will she survive in the Institute with the bully 'Shadowhunters' and barely any friends? WESSA!
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Drama/Romance - Chapters: 15 - Words: 15,759 - Reviews: 12 - Favs: 9 - Follows: 10 - Updated: 4/7 - Published: 12/5/2016
City of Clockwork by LPDracobeatsall reviews
So what if Sophie went back in time and told Will and Jem how their story was going to end. How Tessa seemed not to have loved either of them because she continually went back and forth between them. What would they change? How would that affect Clary and Jace? If Clary didn't have Jace, would she have survived the war? (For those who hate Tessa and think Clary is an idiot)
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Adventure/Supernatural - Chapters: 8 - Words: 10,592 - Reviews: 10 - Favs: 6 - Follows: 8 - Updated: 4/6 - Published: 5/7/2014 - Clary F., Tessa G., Will H., Jem C.
Xandria by Ronniesheep reviews
Xandria, a homeless teenager from London, finds herself in NYC with Jem, Tessa and a host of other Shadowhunters. Little does she know that she isn't who she thinks she is, but only an infernal device.
Crossover - Infernal Devices, Cassandra Clare & Mortal Instruments - Rated: T - English - Supernatural - Chapters: 10 - Words: 7,821 - Reviews: 1 - Favs: 1 - Follows: 1 - Updated: 3/25 - Published: 3/21/2015 - Magnus B., Tessa G., Jem C.
New Years Kisses by Becca Eccleston reviews
Oneshot. Elena and Will. Don't like don't read. While waiting for her husband on New Year's Eve, 2014, Elena Herondale reminisces about their lives before that day.
Crossover - Vampire Diaries & Infernal Devices, Cassandra Clare - Rated: T - English - Romance/Drama - Chapters: 2 - Words: 2,094 - Reviews: 1 - Favs: 1 - Follows: 1 - Updated: 3/18 - Published: 1/1/2015 - [Elena G., Will H.] [Tessa G., Jem C.] - Complete
Reunited by NotYourTypicalMundane reviews
for every breakup there's a reunion. spoilers for cohf. post cols/cp2. Jem and Tessa rekindle their relationship whilst alec falls slowly into dispair. When Alec disappears one night his fellow shadowhunters turn to Magnus in order to track him down before its too late.
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Romance/Tragedy - Chapters: 8 - Words: 4,142 - Reviews: 10 - Favs: 4 - Follows: 7 - Updated: 3/10 - Published: 8/23/2015 - Alec L., Jonathon M./Sebastian V., Tessa G., Jem C.
let me go by unawareofreality reviews
After clary's father mysteriously died she is sent to live with her mother and brother, whom she has not seen in almost 6 years. Clary is no longer the nerdy redhead with a mouth full of metal, but tries her her best to keep her past in Cali under wraps.((KEEP READING PAST CH1 IK IT SUCKS BUT IT GETS BETTER BY CHAPTER 2 I SWEAR.. PLEASE AND THAnK YOU))
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Suspense/Romance - Chapters: 2 - Words: 1,778 - Reviews: 1 - Follows: 4 - Updated: 2/23 - Published: 2/19
Sacrifice of Heart by Talesofwovensilver reviews
Time Travel fic. What if Jace and Clary's confrontation had gone differently in City of Glass and Clary hadn't made it out of the house. What if Jem didn't fall in love with Tessa but another, young fiery girl. Jem/Clary
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Romance - Chapters: 4 - Words: 8,085 - Reviews: 14 - Favs: 25 - Follows: 44 - Updated: 2/19 - Published: 6/4/2016 - [Clary F., Jem C.]
Awake Again by Fallen angels and sins reviews
Six years after the death of Sebastian, everything is good. Jocelyn and Luke have a daughter, Clary and Jace are closer than ever, and Jem and Tessa are still comparing stories from their lives (but are just friends because I just can't). That is until an party at Taki's is interrupted by an uninvited guest with some unusual presents.
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Chapters: 2 - Words: 1,793 - Reviews: 1 - Favs: 1 - Follows: 4 - Published: 2/2 - Clary F., Jace W., Tessa G., Will H.
Letters to Will by bodysurfer27 reviews
Letters Tessa writes to Will after he has passed, detailing her travels and encounters on her journey through COHF
Crossover - Infernal Devices, Cassandra Clare & Mortal Instruments - Rated: T - English - Romance/Hurt/Comfort - Chapters: 2 - Words: 1,111 - Reviews: 2 - Favs: 2 - Follows: 1 - Updated: 1/21 - Published: 6/1/2016 - Magnus B., Tessa G., Will H., Jem C.
Penumbra by j.p.dara
A mysterious force has entered Hogwarts and Lily Evans is in danger.
Crossover - Harry Potter & Infernal Devices, Cassandra Clare - Rated: T - English - Adventure - Chapters: 4 - Words: 11,419 - Favs: 1 - Published: 12/14/2016
If I Could Turn Back Time by PrimadonnaGurl13 reviews
Jace, Clary, Isabelle and Alec are trying to save Simon. When Magnus messes up and they all end up in 1874, London with Will, Tessa and Jem, they know they need to fix it, quick. It's as canon as I can get given the story line and PLEASE read inside for more info, thanks.
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Fantasy - Chapters: 10 - Words: 14,155 - Reviews: 50 - Favs: 97 - Follows: 136 - Updated: 12/9/2016 - Published: 2/8/2012
Taken Back by brialexandra reviews
When Clary's portal rune defects, she takes herself, Jace, Isabelle, and Alec back in time. Leaving them in the year 1878, London England. And with Clary too injured to wake, how will the Shadowhunters return home? Will their new friends, Tessa and Will, help them? Or will unexpected relations and shocking family secrets, tear them apart?
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Adventure/Fantasy - Chapters: 7 - Words: 13,254 - Reviews: 89 - Favs: 119 - Follows: 205 - Updated: 11/29/2016 - Published: 11/20/2015 - Alec L., Clary F., Isabelle L., Jace W.
Una amistad peligrosa by ladyluna10 reviews
Las cosas en el Instituto de Londres transcurren con tranquilidad pero, ¿qué pasará cuando envíen allí como castigo a Sirius Black y James Potter y estos se encuentren con Will Herondale y Jem Carstairs?
Crossover - Harry Potter & Infernal Devices, Cassandra Clare - Rated: K+ - Spanish - Friendship - Chapters: 1 - Words: 2,476 - Reviews: 1 - Favs: 4 - Follows: 1 - Published: 11/22/2016 - Sirius B., James P., Will H., Jem C. - Complete
Unexpected Love by booksforlife23 reviews
What would happen if Will had moved to the Americas to live with his cousin and his uncle and had met Tessa there? Instead of fighting for their lives, Will and Tessa are struggling to get through High School, all while trying to avoid each other. What happens though when a common friend, brings the two together and they realize they have feelings for each other?
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: K - English - Chapters: 1 - Words: 308 - Reviews: 2 - Follows: 1 - Published: 11/1/2016
Question Time 2 by Izzle Heronstern reviews
So here we are, back again. Question Time. More ducks, more Jace and definitely more Magnus! Except this time, there is a huge plot twist. More drama, more laughs and more SPARKLES!
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: K+ - English - Humor/Drama - Chapters: 2 - Words: 2,764 - Reviews: 9 - Favs: 8 - Follows: 7 - Updated: 10/25/2016 - Published: 4/27/2016 - Magnus B., Emma C., Julian B., Will H.
miracle of colour by mannequinmen reviews
soulmate au - you cannot see colour until you touch your soulmate. MULTIPAIRINGS! leave requests/reviews
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: K - English - Romance - Chapters: 3 - Words: 3,371 - Reviews: 3 - Favs: 15 - Follows: 15 - Updated: 9/4/2016 - Published: 3/8/2016 - Alec L., Magnus B., Tessa G., Will H.
Life Takes Turns by ShadowWalkerxX reviews
What will happen when the tmi gang go to the london institute? Will there be new love? Read more to find out.
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Romance/Drama - Chapters: 4 - Words: 20,701 - Reviews: 41 - Favs: 27 - Follows: 39 - Updated: 7/12/2016 - Published: 11/10/2013
Blood Magic by noed318 reviews
Un demonio intenta llevarse a Luna pero Theo interfiere y la criatura termina llevándoselos a ambos. El pelinegro despierta solo, en un tiempo que no es el suyo. Ahora tendrá que buscar ayuda para encontrar a Luna y volver a su tiempo... pero al conocer a Magnus Bane descubre que ese ni siquiera es su mundo. ¿Podrá encontrar a Luna y regresar a Hogwarts?
Crossover - Harry Potter & Infernal Devices, Cassandra Clare - Rated: T - Spanish - Romance/Adventure - Chapters: 4 - Words: 6,942 - Reviews: 1 - Favs: 1 - Follows: 2 - Updated: 7/12/2016 - Published: 4/2/2016 - [Theodore N., Luna L.] Magnus B.
City of Infernal Games by SilverCarstairs reviews
-UNDER MAJOR EDITING- Because 2013 was 3 years ago, and 3 years ago I evidently did not know what an apostrophe was! TMI/TID in the 75th Annual Hunger Games
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Suspense/Friendship - Chapters: 36 - Words: 75,907 - Reviews: 270 - Favs: 78 - Follows: 93 - Updated: 7/11/2016 - Published: 9/11/2013
Three awkward encounters with Jem and one adorable one by miss Amysong reviews
A little bonus story about some awkward moments shared by Alec and Jem and one sweet one.
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Humor/Friendship - Chapters: 1 - Words: 1,693 - Reviews: 4 - Favs: 7 - Follows: 2 - Published: 7/11/2016 - Alec L., Magnus B., Tessa G., Jem C. - Complete
A Whole Mess of Shadow Hunters by crazyreader12 reviews
When someone long dead shows up at Magnus's loft and Simon turns up at the Institute, memories fully intact, everyone is more than a little confused. Add to that Alec getting kidnapped, and Simon and the long-dead person have interesting news. An enemy is significantly less dead than preferred, and there is more to Clary's family than anyone remembers. What a mess of Shadowhunters.
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: T - English - Supernatural/Family - Chapters: 1 - Words: 684 - Reviews: 2 - Follows: 5 - Published: 7/9/2016
She's my WHAT! by Forever Fangirl 657 reviews
Tessa and Jem pay a visit to the New York Institute. They decided to tell Clary, Jace, Isabelle, and Alec their story. Note: I do not TMI or TID! Cassandra Clare does. I am doing this for fun.
Crossover - Mortal Instruments & Infernal Devices, Cassandra Clare - Rated: K - English - Family/Humor - Chapters: 1 - Words: 760 - Reviews: 3 - Favs: 6 - Follows: 3 - Published: 7/5/2016 - Complete
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