Ray once again proposes to Jean, but she's distracted by "invisible robberies" of jewelry all over town. The Atom attends a chess match with a platinum chess set and hides in a rook. The entire set is whisked up and away "invisibly". Greg Philips, feature writer for the Ivytown Herald, has gained "mind over matter" with pills invented by a deceased scientist. The Atom escapes a poison-fumed box, telephones to the crime in progress, and scotches Philips. But Jean still won't marry him!; A master spy assumes the identity of a scientist to get close to Professor Loring, who builds "super weapons". Jean checks his fingerprints and finds a fraud. Ray Palmer offers to contact "our friend, The Atom." The Atom telephone-ports to Budapest and finds the real Professor Kraft. Escaping a test tube and flypaper, he jump-punches and weight-changes the spies into submission.; Educational info about atomic energy and atoms.; Educational info, mesas vs. buttes.