In the first section they came to, samples of skin and other tissues were being examined. By reintroducing the substance believed to have escaped over the centuries, specimens had been restored to what were hoped to be close approximations to their original conditions. In general, the findings merely confirmed that Charlie was as human chemically as he was structurally. Some unfamiliar enzymes had, however, been discovered. Dynamite computer simulation suggested that these were designed to assist in the breakdown of proteins unlike anything found in the diet of modern man. Danchekker was inclined to dismiss this peculiarity with the rather vague assertion that "Times change," a remark which Hunt appeared to find disturbing.

The next laboratory was devoted to an investigation of the space suit and the various other gadgets and implements found on and around the body. The helmet was the first exhibit to be presented for inspection. Its back and crown were made of metal, coated dull black and extending forward to the forehead to leave a transparent visor extending from ear to ear. Danchekker held it up for them to see and pushed his hand up through the opening at the neck. They could see clearly the fingers of his rubber glove through the facepiece.

"Observe," he said, picking up a powerful xenon flash lamp from the bench. He directed the beam through the facepiece, and a circle of the material immediately turned dark. They could see through the area around the circle that the level of illumination inside the helmet had not changed appreciably. He moved the lamp around and the dark circle followed it across the visor.

"Built-in antiglare," Gray observed.

"The visor is fabricated from a self-polarizing crystal," Danchekker informed them. "It responds directly to incident light in a fashion that is linear up to high intensities. The visor is also effective with gamma radiation."

Hunt took the helmet to examine it more closely. The blend of curves that made up the outside contained little of interest, but on turning it over he found that a section of the inner surface of the crown had been removed to reveal a cavity, empty except for some tiny wires and a set of fixing brackets.

"That recess contained a complete miniature communications station," Danchekker supplied, noting his interest. "Those grilles at the sides concealed the speakers, and a microphone is built into the top, just above the forehead." He reached inside and drew down a small retractable binocular periscope from inside the top section of the helmet, which clicked into position immediately in front of where the eyes of the wearer would be. "Built-in video, too," he explained. "Controlled from a panel on the chest. The small hole in the front of the crown contained a camera assembly."