nerve had been reconfigured to function like a high-speed camera and the processing speed of his neuronal system having been increased a thousandfold. The conclusion reached is that Clifford's physiology was re-structured by the aliens to function as a computer. During this, Bergman's suspicions are confirmed as the viewer is taken into the sphere where unseen entities reside in a black void, surrounded by swirling coloured light and melodic sound. They observe the goings-on in the Alpha Medical Centre...and seem especially interested in Helena. Alan Carter and co-pilot Jim Donovan lift-off in Eagle Three—also under alien observation—to reconnoitre the sphere. On approach, the ship is deflected by a force-beam of orange light. Both astronauts are rendered unconscious, and the Eagle is sent tumbling out of control back towards the Moon. With controls set to manual, Paul Morrow cannot use his remote link to establish control and bring them back safely. Eagle Three crash-lands seven hundred metres from the Moonbase perimeter. With no other means available, Koenig decides to lead a rescue team on foot. Halfway to the downed Eagle, Koenig's party is ambushed; a ball of orange light approaches and Helena is compelled to walk into it. Koenig attempts to prevent her abduction, but is thrust back and rendered unconscious. The light, with Helena, disappears. Back at Alpha, Koenig regains consciousness and learns of Helena's abduction and the death of Carter's co-pilot. Bergman reckons the crash was nothing more than a lure to get Helena out on the surface and unprotected for unknown reasons. Koenig wants to make another attempt to penetrate the sphere; he proposes to Bergman that in order to defeat the Tritonian force-field effect, they need to radically increase the strength of their Eagles' standard anti-gravity screens. Helena materialises in the black void, clad in gossamer robes. She converses with her unseen captors, telling them the Alphans mean them no harm and that they need their help. The Tritonian voice says that it is she that will help them; they are the eyes of Triton and everything that was, is, and will be is recorded by them. A frenetic light-show ensues as Helena is unknowingly processed by the Tritonians. The modified Eagle is ready and Koenig and Carter take-off to rendezvous with the sphere. The strengthened anti-gravity screens effectively thwart the power of the projected force-beam. The aliens then reverse the field and the Eagle is suddenly