The burning shadow

"When Evelyn Dasher crossed paths with Luc, she was thrown headfirst into the world of the Lux--only to discover that she was already far more involved in their world than she ever suspected. Because the Luxen aren't the only ones with a hidden past. There's a gap in Evie's memory, lost months of her life and a lingering sense that something happened, something she can't remember and nobody is willing to tell her"--Book jacket.