For thousands of years Morgoth, traitor to the Valar, had been trapped in the deep void. Banished by his brethren he was forced to relive his defeats over and over again. The tales of these defeats echoed across dimensions, interweaving with folklore and fantasy.
The loudest and most persistent of these echoes are that of the defeat of Morgoth's most loyal lieutenant, Sauron, in the War of the Ring.
But after millennia of waiting the chains binding him had begun to come loose. His power slowly returned to him and with that power he found he was able to reach back to his last and greatest defeat. The changes he made at first could only be minor but as his strength returned the changes could become great enough to change the outcome of the war. In this change not only would Middle-Earth be enslaved but Sauron would gain the power to aid Morgoth in his escape from eternal imprisonment.
However; hope remained. Varda, Queen of stars, overheard Morgoth's plot to escape. Though her powers were no match for his, while they were weak, she could thwart his attempts of sabotage of events long since past.
Varda summoned her powers and ordered them to seek out beings that could be sent to Middle-Earth to physically preserve the outcome. Since the tale had been so great it had echoed through dimensions, she needed creatures with the most accurate knowledge of the events, they needed to be willing to accept her quest and they needed gain the trust of the members of the Fellowship in order to properly protect them. She watched as her stars searched for these beings hoping that they would return with news of the help she needed.
After months of searching her hope had begun to fade until two stars returned showing her two human girls from the world of 'Earth'.