Holes

Zero shows Stanley the cave under the earth where he lives for 4 days now. He also tells him about the sixteen jars of Sploosh he had eaten. Later, Stanley discovers that the name of the Ship is Mary Lou. This was the name of Sams doncy.
A short time later, Zero gets a horrible stomache wich is caused by the sploosh. Originaly Stanley want to rescue Zero, but he absolutely refuses to go back to the camp.