Tom Swift and the Electronic Hydrolung

Tom Swift and the Electronic Hydrolung is a sci-fi adventure novel by Victor Appleton. The US Government is letting Tom Swift Jr. manage the recuperation of its probe to Jupiter. But an unknown missile abruptly intercepts the probe and splashes it in the South Atlantic. Confronted with a massive search task to locate the probe on the ocean bottom, Tom soon understands that the same mysterious group that attacked the probe is racing to find it!