Jack Sharkey, The programmed people (1963)
“ There was a fractional hum of power, and then a searing fork of hot blue light leaped from a conic protrusion on the Brain's inner surface and turned the weapon to molten metal in his fingers. Bodger fell to the flooring, crying out in pain, his raw, blistered hand nearly driving him unconscious."You should have known," Stanton addressed the mewling figure on the ground near his chair, "that a sonic beam cannot be fired inside the Brain; it would shatter some of the delicate balances necessary for its functioning. The Brain has to safeguard itself." ”
