S1, E2: A lonely and unhappy boy wanders into the Hammond twins’ lives. But he’s not only lonely - he’s a menace. Clever with electronics, he makes the lives of Lou and her friends a misery by rigging up fake spiders powered by batteries, and spins Jerry tales that an old mill near the Hammonds’ place is haunted. He also talks Jerry into sneaking out after dark to see the ‘ghost’. Jerry is in dead trouble when Sonny discovers this. Then Lou makes a discovery too - the ‘ghost’ is actually a series of mechanical and electrical tricks rigged up in the mill. She turns the tables on the boy who did it by taking him unawares with his own devices. It’s also made her realise how smart he is, and she! asks him to rig up something special for the local Halloween celebrations.