Back to school, but not so fast! Jem Lockwood's first assignment is to write a composition on what he did during the summer, and he tells the teacher he could write a book. Short Circus is Jem's own story about his remarkable adventures with his Big Brother, Jesse Standish, and a host of neighbors and friends, plus a mysterious enemy who keeps sabotaging the swimming pond. There are bike jumping contests, fistfights, motorbikes, visits to seaside towns for festivals, and swimming in a waterfall. What begins as a glorious summer is very nearly ruined when Jem discovers that his Big Brother's rented house is about to be sold, and Jesse Standish may be forced to move away.