Steal the Day — Lexi Blake

The world's most unusual thief faces her greatest challenge -- stealing a soul from the depths of Hell… When a member of her crew is dragged to Hell by a demon, Zoey plans the most dangerous heist of her career. With her team at her side, Zoey intends to sneak onto the Hell plane and steal Sarah back. The job seems impossible until a new client makes them an offer too good to refuse. If she can find an ancient artifact called The Revelation, she can use it to locate an angel who holds Sarah's redemption in his hands. Surrounded by warring angels and demons, the greatest threat may come from one of her own. Torn between her Fae lover and the vampire who has always held her heart, Zoey finds that she and Dev are trapped in Daniel's web of secrets and it may be Zoey who has to pay the ultimate price.