Invisible Island (DG) / Roy(隐形的小岛)

It's a beautiful day for a picnic! Dink, Josh, and Ruth Rose pack up a basket and wade out to Squaw Island to eat and explore. Before they can even spread their blanket, they find a hundred-dollar bill in the sand! But when the kids come back the next day, the entire island has mysteriously disappeared. What is the secret of Squaw Island?

Book Description
While picnicking on Squaw Island, a group of friends find a $500 bill. But when they return the next day, the whole island has disappeared and they must figure out the mystery to this vanishing act.

Book Dimension :
length: (cm)19.4 　　　 　　　　　 　　　　　 width:(cm)13.3