Utopia (Fantasy World: The Explorers #5)

After Willa is mortally wounded, Expedition One desperately seeks out help. With the guidance of their former captors, the Explorers arrive at "Utopia," a modern, mobile city with technology beyond their comprehension.

While Willa is treated, Tristan Thames and Cameron Bell meet Ta-kim, the enigmatic elf in charge of the city. With the great power that Utopia possesses, Tristan knows that Ta-kim would make a valuable ally for the three communities, but what could Ta-kim possibly want from them in return?