How long can you go without water? David doesn't know. He just knows he's lost in a place with nothing but trees, trees, and more trees. How will he and his cousin Callie find their way out?

"Red system" series part identified by red band on books as identified on publisher webpage for Fountas & Pinnell Leveled Literacy Intervention System (LLI) http://www.heinemann.com/fountasandpinnell/lli_Overview.aspx.