Champion runner Tanzania Grey, 17, has to win the Verde Island Endurance Race's million-dollar prize to save the life of her friend Bailey. The treacherous five-day race traverses a remote volcanic island that's home to beasts that slither, fly, swim, and slink through the jungle. But the wildlife turns out to be the least of Tana's problems when she draws the name of Sebastian Callendro as her partner. Sebastian's personal life has put him in the national spotlight, and his nosy followers are the kind Tana can't afford. Her name isn't really Tanzania, and everything else in her biography is invented, too. She’s been running for three years─from the men who murdered her parents. If her cover is blown, she could be next.