Detectives vs. Swamp Pirates

“This will be an adventure!” Pashka Soldatkin and Sanya Chibisov think, deciding to go down the river on a homemade rubber raft. On the very first day, their flimsy craft wrecks; backpacks sink, and the travelers end up on an uninhabited island. But is it really uninhabited? And how did the mysterious Black Ranger get there—about whom the most ominous rumors are told in the area? And how, in this wilderness, did strange people end up… in a jeep? For close friends, one thing is clear: ahead of them is a new investigation…