David finds the morphing cube and foolishly offers it for sale on the Internet. After the Animorphs rescue him from Visser 3, they aren't sure where to put him. Why don't they take him to the free Hork-Bajir valley (established fully 7 books earlier)?
At one point, David is put up at Jake's home. How did Jake hide David from his Mom, Dad, and his controller brother Tom? Or how did he explain David's presence?