Tremily is the combination of Emily+Trellis. There are little hints in the book, like the moment Trellis gets out of jail in The Last Council, he asks, “Where is Emily?!” Trellis was also curled up in a ball when they were arriving at Cielis with messy hair and everything. He must have cried himself to sleep because Emily wasn’t there! Also, When Trellis said, “I have to go back and help my people.” Then, Emily said, “What makes you not my people which is proof she wanted Trellis to stay. THIS IS JUST SIMPLE PROOF!!!!!!!!!!!There is a lot more, like why did Trellis want Emily to help to kill the elf king, if he could have done it himself, or at least tried to? I know that this ridiculous, but it’s true! I mean, Trellis always smiles when he sees Emily, but never when he sees Vigo, or Riva. Emily also wanted to go with Trellis into his memories, because she wanted to stay with him, and she would not allow Vigo to go, and Vigo didn’t really care. IT’S JUST SIMPLE LOGIC!!!