Character(s):
Batman [Bruce Wayne]; Robin [Dick Grayson]; Mr. Ross (wealthy man); Mr. Martin (wealthy man); Doctor Agar (villain)
Synopsis:
A crazed scientist says that he has created a shrinking gas, but when he is laughed at by a group of wealthy possible investors, he uses a giant-sized room at his home to convince skeptics they have been shrunk, then he extorts money out of them.