"Although it was never expressly stated whether these injections succeeded in raising the fertility, what the injections did manage to do was make sure every adult monster in the Underground was put into a "constant state of heat". Ghosts are the only exception to this, as they lack a physical form."

Description: Latin-translation | [English-wording] --- Aliquam-parasitus | [Latex-parasite] Peregrinus-transformatio | [Crusade-transformation] Colour-infectio | [Colour-infection] Antiqua-plaga | [Sans-plague]