My main problem with this story is Lamia herself. Her reaction to Aquila, considering what happend with Uriel, is to be expected but otherwise... She's no likeable to me. Her treatment of Uri infuriates me, and her behaviour strikes me as "Holier than thou" and claiming the moral high ground, but the whole innocent child thing throws it out the window. She's neither likeable, nor particularly fun to read about and as the FL.
At this point I'm just here for the mystery surrounding the Dragon and Time Travel, because though Aquila is far more fun to read about... Yeah. His behaviour rings alarm bells in my brain.