"Please do not open!" is written on the mysterious package that Nemo receives. Nemo opens it anyway, of course ... 1. a plush figure jumps out, a greedy yeti knight called Icy-Ice-Monsta! 2. it snows outside - in the middle of summer! 3. the yeti gets big. Two and a half feet tall! While the small town of Boring is covered in snow and ice, Nemo and his friends start to sweat. Because how, pray tell, do you hide a yeti? A turbulent race against time begins.Volume 1 of the bestselling children's book series - finally in paperback!Previously published:Please do not open: Bitey! (Volume 1)Please do not open: Slimy! (Volume 2)Please Don't Open: Thirsty! (Volume 3).