A review by kimal25
Black Water by D.J. MacHale

5.0

The inhabitants of Eelong are in danger of being wiped out by a mysterious plague. The only way Bobby can stop it is to bring the antidote from another territory. Since moving items between territories is forbidden by the Traveler rules, if Bobby chooses to save Eelong he could endanger himself, his friends, and the future of every other being in Halla.

Very good book.