"A BIOLOGICAL TIME BOMB? "In the shaft leading to the [ventilation] grille a mindless, groping mass of malodorous corruption was thrusting its way silently tow

"A BIOLOGICAL TIME BOMB? "In the shaft leading to the [ventilation] grille a mindless, groping mass of malodorous corruption was thrusting its way silently towards the surface. Buoyed up by bubbling foam it steadily rose. Single units in an obscene abrogation of normal order divided and made two. Two became four and four, eight. " https://www.goodreads.com/book/show/2368220.Mutant_59 https://www.goodreads.com/book/show/2368220.Mutant_59