Descend into the Void - Alexandra Larson - Bog

You should never make a bargain with a fae darkyra.
For Amaya Mevson, this isn't her first or even second bargain with the shadow wielder.
But with one of her best friends imprisoned overseas, she has no choice but to accept when Sebastian promises to save Sloane in exchange for pretending to be his fiancée.
Her world becomes twisted when she has to hide her shadow powers or risk becoming the next high priestess to disappear.
However, when the only way to deflect attention also involves losing a piece of herself, she finds herself lost in darkness.
Without light to guide the way, Amaya has no choice but to descend into the void to find her way through the abyss.
Descend into the Void is the second installment in the spicy new adult urban romantasy series, Dark Perceptions. This series must be read in order.