Something is wrong at Camp Half-Blood. After a strange monster attacks, campers are dying, and their bodies are being used as vessels for some mysterious, evil, force. Only two people can resist the poison that kills and controls the demigods: Hazel and Nico, the children of the Underworld. Will the two siblings be able to trace this power back to it's source, and defeat the enemy once and for all? A Jercy collaboration story with @TheFangirl185 WARNING! IF YOU SEE THIS BOOK ON ANYTHING OTHER THAN WATTPAD IT IS STOLEN! TEENFIC.NET HAS STOLEN THIS STORY AND MANY OTHERS!