Wayside School Gets a Little Stranger

Name: Wayside School Gets a Little Stranger
Author: Louis Sachar

Before you enter Wayside School, you should know that it's a thirty-story building with one classroom on each floor. Mrs. Jewls teaches the class on the thirtieth story. Miss Zarves teaches the class on the nineteenth story-except there is no nineteenth story, so there is no Miss Zarves. Understand? Good. Explain it to Calvin.