So, time for my third published crossover with RWBY. This one has been a bit of a saga to start. It came about originally from discussions with whitetigerwolf, and is actually based, at least originally, on their Letter Challenge 1. While it was tempting to do one where Harry was Summer's child, I came up with a solution that ties in neatly into recently-revealed RWBY lore.

The original version of this story, as posted in The Cauldron, was originally a Harry/Neo story, but as that felt a little forced the way I was writing it, I decided to change the pairing to Harry/Velvet. That has, admittedly, been done, but Velvet needs more love. There'll also be some worldbuilding outside of the established RWBY canon.

Incidentally, the title means 'we are dust and shadow' in Latin.

Anyway, time for the usual disclaimers. Firstly, there will be spoilers for both Harry Potter and RWBY. And yes, that includes Volume 5.

Secondly, there will be heavy annotations, as is usual for my works. You have been warned.

Thirdly, this is an M-Rated work. There will be coarse language, violence, dark themes and sexual references. Again, you have been warned.

Finally, the following is a fan-written work. Harry Potter and RWBY are the properties of their respective owners. Please support the official release. Otherwise, Professor Port may just bore you to death…