Summary: When Sector V is playing a game of Cinderball, the Cinderblock smashes into a mysterious mansion. Numbuhs 2 and 4 are afraid to go in because of rumors they've told each other. Numbuh 5 then opts to go in. But she takes over an hour, so her friends go in to get her. They find her at the bottom of the stairs with the cinder block, claiming to have been knocked out. Later that night, she helps Numbuh 4 with his homework. But strangely, for three nights, his homework goes missing. As a result, Mrs. Thompson gave him a triple amount of homework. Numbuh 5 accuses Valerie of the theft but she denies it because Numbuh 4's homework is extremely terrible (because it is hazardous to weredogs). Mrs. Thompson then comes on the scene; Valerie claims that Numbuh 5 was threatening her, so Mrs. T