Twelve year old Callum McBride, home from school and bored in the holidays, discovers to his shock that he can occupy the minds of animals and control their actions while leaving his body where he left it, seemingly lifeless. He’s only just discovered this worrying ability when he meets Emma, a girl with her own issues and talents including a computer-hacking talent that has previously got her into trouble with MI6.
As the bond between them grows, they uncover a connection between Callum’s powers and the fact that he was found at less than a year old on the ferry that runs between Iona and Mull, and subsequently adopted by a local family. Throwing themselves into an investigation into the link between Callum’s strange abilities and his origins, they’re soon caught in a plot to steal a nuclear warhead. Only by thinking on their feet, trusting each other and using their abilities can they hope to stay alive and defeat the evil they face.