I is for Island...

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?

This paperback book is in great condition and weighs 2.5 oz.