 Why will adult psi contact hurt the children?
Nobody's been able to get near him for three weeks, and now at six o'clock this morning he decides he's leaving the Farm. "Full psi precautions?" asked Dorffman. If Tommy's in the trouble I think he's in, we don't dare risk a chance of Adult Contact now. The first was from Roberts Bros., announcing another shift of deadline on the book, and demanding the galley proofs two weeks earlier than scheduled. As director of psionic research at the Hoffman Medical Center, he had long since learned how administrative detail could suck up daytime hours. It bore the letterhead of the International Psionics Conference: Dear Dr. Lessing: In recognition of your position as an authority on human Psionic behavior patterns, we would be gratified to schedule you as principle speaker at the Conference in Chicago on October 12th. "A Theory of Psionic Influence on Infant and Child Development." When they were finally forced to recognize that this great and powerful force did indeed exist in human minds, with unimaginable potential if it could only be unlocked, they had plunged eagerly into the search, and found themselves in a maddening bramble bush of contradictions and chaos. They were trying to study phenomena which made no sense, observing things that defied logic. And the more they struggled, the thicker and more impenetrable the bramble bush became— But now David Lessing had discovered a pathway through that jungle, a theory to work by— At his elbow the intercom buzzed. "Within the stronghold of psionic research at last.
 Adult psi contact dampens the children's natural psionic abilities. Eventually, adult psi contact will snuff out a child's abilities altogether.
 Adult psi contact increases a child's psionic ability so much it can cause a psychotic break.  Adult psi contact overwhelms the children's brains. It gives them migraines.  Adult psi contact overwhelms the children's nervous systems. It gives them nose bleeds.  Adult psi contact dampens the children's natural psionic abilities. Eventually, adult psi contact will snuff out a child's abilities altogether.