The mechanics of the operation are a secret, though. He talks to himself and says he needs to do something about it. Later, on the boat, a fish-like creature reaches over the rail and grabs Trixie. It isn't until they all get off the boat that they realize Trixie is gone. As they stand talking, Karuku comes out of the woods.
Speed tries to fight off the monster, but gets beaten badly.
Sparky is captured. Spritle and Chim Chim are making an even bigger mess back at the house. Speed radios to get some information on the Auranya Indians, but Spritle keys in Orangutan instead. Speed is disgusted, and realizing Spritle is of no help, takes off in the Mach Five. He drives underwater and discovers the underwater pyramid and the secret treasure chamber.