In the human, the pineal gland was the despair of the medical sciences. It was not demonstrably linked to any other organ nor did it serve any demonstrable function. Yet, it was known that its sensitivity was greater by far than even that of the pyramidal cells and that in some mysterious manner the pineal gland was vitally connected with the center of life because its slightest violation caused instant death. Metaphysicists had dealt with this mystery of mysteries; it was their theory that the pineal gland were the seat of "extrasensory" faculties and it was often referred to as "the inner eye." Even if such an organ could have been duplicated by science and technology, there would have been no use for it; it could have served no purpose in The Brain. The Brain had been designed for the solution of exact problems; no matter what nature had created in the brains of higher animals, no matter how unprejudiced their approach, scientists like Dr. Scriven would have hesitated to impair an otherwise perfect apparatus through the addition of nuisance values such as any "extrasensory" faculties. However, with The Brain being modelled so closely after the human brain, the space for the pineal gland did exist even if in a sort of functional vacuum. In order to utilize this space in some manner, the designers had converted the gland into a subcenter for the distribution of spare parts. As such it had become one of Lee's favorite observation posts. Here he could get a closeup view of all types of electronic and radioactive cells; he could even touch and handle them because they were not hooked up in any circuit of The Brain; and above all there was Gus Krinsley, master electrician, who never tired of telling Lee whatever he wanted to know. Gus was a real friend.... * * * * * He had left the glideway on the point of its nearest approach; the pineal gland in front of him looked like a miniature barrage balloon; egg-shaped, it hung suspended from the cerebral roof, a shell of plastics which could be entered only over a bridge across a dark abyss. Inside, its walls were aglitter with sound-proofing aluminum foil, it was piled with a bewildering variety of electronic parts on shelves somewhat like an over-stocked radio store. Near the door a counter divided the room; Gus used it and a little cubicle of an office to fill the orders as the maintenance engineers handed in their slips. As usual there was nobody in sight. "Gus!" he called. Out of the jungle of machinery way back a head popped up like a Jack-in-the-box. It was as bald and shiny as an electric bulb. High up on its dome it balanced gold-rimmed glasses which quivered as it moved seachingly from side to side. Then, with an amazing twisting of big ears, the head caused the biofocals to drop onto a saddle near the tip of a long, sensitive nose; and now the head could see. "It's you Aussie, is it? Come over."