It all started on Cosmos Kleos 16th birthday when was teleported away from his perfect life. He had everything; lots of money, too many friends to count, and anything he's ever wanted. Except for a family. His mother raised him alone till he was 6 before she put him up for adoption. Cosmos never met his father, and his mother never wanted to talk about him. He never knew the reason that his mother gave him up, only that she kept saying that he was just like his father. He was put in many foster homes over the years, mainly because he always freaked them out. He was with his 7th foster family when he learned about his power and how to control it. He was able to talk to the dead and make them obey him. He learned that he just had to use his self-control in order not to mess up again.
Gratia (Grace) Faustus already knew that she was a daughter of Neptune. Her mother told her all about it and taught her how to use her powers correctly. Her mother told all about how she would teleport to an island camp with many other demigods on their 16th birthday. What Grace didn't expect, was that she would be teleported to the island on September 13th, when she was only 15.
Grace and Cosmos meet each other and become close friends on their journey to the middle of the islands, but will they be prepared to go to sacrifice things close to them when a great danger rises and threatens all of the Gods and Goddesses? Or will they sit by and watch the fall of Olympus?
In the epic conclusion to the Devil's Deal series, Freya has one final chance to discover the full potential of her own power, and to use it to restore balance in the universe - once and for all. After the destruction caused by Roisin, Ferya and Torix come to terms with their losses and mistakes... And prepare for a final battle that will change everything.