using a numeric code transmitted to the habitat's computer. While the team struggles to communicate with Jerry, increasingly bizarre and deadly events occur, including the appearance of impossible sea creatures that Halpern claims cannot exist (such as shrimp with no digestive organs), confirmed when Jerry informs them he is "manifesting" the creatures. At this point, members of the team start to die in various attacks by giant squid, and the dwindling band of survivors struggle in their dealings with the unthinkably powerful, childlike, and temperamental alien entity. Johnson realizes he must use psychology to keep the remaining survivors alive namely Johnson, Adams, Halpern. After re-translating the original code, Johnson realizes by transposition the entity's name is "Harry". Johnson hypothesizes that the sphere is an object which allows a person's subconscious thoughts to manifest in reality, and Harry Adams has acquired the power through entering it. This is confirmed by his childhood fear of squid, especially the giant squid in the novel Twenty Thousand Leagues Under the Sea, manifested in the form of a vast number of small squid and later a giant squid that attacks the DH-8 Habitat. Johnson and Halpern sedate Adams and wait for contact to be re-established with the surface, but the manifestations continue. Halpern accuses Johnson of having entered the sphere and gaining access to the power. While unable to recall this incident, Johnson comes close to yielding, until he watches a security video of Halpern entering the sphere herself. Rejecting the notion, Halpern decides that Johnson is an imminent threat and defends herself by planting potent explosives around the spacecraft and habitat, and then attempts to suffocate Johnson by manipulating the habitat's life-support system. Escaping from the habitat, Johnson goes to the spacecraft and enters the presence of the sphere, then the sphere itself. Inside the sphere, he finds a large sea of translucent "foam," and has a conversation in his thoughts with some sort of entity that speaks in cryptic riddles, who eventually tells Johnson that the greatest power humans possess is the ability to imagine things. After leaving the sphere, Johnson decides to escape using the submarine docked at Habitat DH-7, a nearby habitat for Navy personnel, but cannot abandon the other survivors. Now empowered in the same way as Adams and Halpern, Johnson returns to DH-8, and using the submarine, the trio escape before the explosives set by Halpern count down and