Гари Паулсен «Dunc and Amos and the Red Tattoos»

Dunc and Amos head for camp and face two weeks of fresh air—along with regulations, demerits, KP, an inedible food. But where these two best friends go, trouble follows. They overhear a threat against the camp director and discover that camp funds have been stolen. Do these crimes have anything to do with the tattoo of the exotic red flower that some of the camp staff have on their arms?