It's not easy being one of the last living dragon shifters in London. Two years ago, when the faeries attacked the mortal realm, all supernaturals were dragged into the open. Unfortunately for dragon shifters like Ember and her sister, dragons are still hunted by humans and supernaturals alike. Keeping a low profile is difficult with monsters roaming the streets, but Ember and her band of rogue shifters have managed to survive. Until their oldest enemy, the supernatural-hunting Orion League, emerges from the shadows and captures Ember's sister. To get her back, Ember is prepared to walk into the depths of London's magical underworld, even if it means kidnapping a lethal ex-hunter who'd like nothing better than to add her name to his kill list. His inside knowledge of the League is the key to saving her sister, but with their allies turning on them, Ember must choose who to trust or meet the same end as the other dragon shifters.

Being a dragon shifter is no picnic. Being a fugitive is even harder. But after their audacious escape from the supernatural-hunting Orion League, Ember and her friends have to lie low. Easier said than done when her sister lies in a magical coma, and the key to saving her is a rare item coveted by all supernaturals. In order to track down the item, Ember must once again team up with Astor, the ex-hunter who betrayed her once already. But there's more than one scheme at work beneath the streets of London, and if Ember fails to stop the League's latest plan, the hunters will drive the remaining shifters to extinction.

Ember and her sister Cori are finally reunited, but the shifter-hunting Orion League are gearing up to play their final hand and wipe out all supernaturals. Despite being held captive by the Mage Lords, Ember and Cori refuse to give up on their plans to find the other dragon shifters. But if the hunters get there first, it'll be an all-out bloodbath. Ember and her friends race the clock to find out the truth lost with their memories, but between the League's threat, a too-tempting ex-hunter, and the plight of her people, Ember must pick a side. If she chooses wrong, it may be the end of all supernaturals in this realm.