Suzy Kline

When Horrible Harry's pet cat, Googer, sneaks a ride and gets into the school building, third-graders Harry and Doug have to catch him before anyone else does, which means going into some forbidden places.

The students in Miss Mickle's third-grade class enjoy a boat trip on the Connecticut River after a class discussion of ancestors reveal that Sidney and Ida both have connections to the sea.

Harry persuades his classmates to sneak through the playground fence during lunchtime recess to view some unusual mushrooms.