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Candy on a toothache turns Sach into a prognosticator, which attracts the attention of an exploitative Slip and a personality switching doctor hoping to create an obedient super race

The gang gets stuck during a thunderstorm in a spooky mansion, where they run into ghosts, gorillas and various apparitions

Sach is the exact double of a famous French scientist who has invented a powerful rocket fuel Enemy agents, mistaking Sach for the scientist, attempt to kidnap him and get the formula for the fuel

When the boys discover that Sach has a strange ability to sniff out diamonds, they hatch a scheme to make money out of it