Shortly after beginning his studies of the Deltans, Bob takes a keen interest in a young cub who is always walking around poking at stuff and banging rocks together. Inspired by the young Deltan's curiosity and ingenuity, Bob starts referring to the cub as Archimedes.

At first contact, the Deltans have pointy sticks and some sharpened flint, but Archimedes' mother seems to be the only one with a flint knife with a handle. Bob quickly deduces that this is the creation of Archimedes and from then on takes it upon himself to help Archimedes along in the greater interest of Deltankind as they are being brutally hunted by a physically superior "gorilloid" creature.