Fungus the Boogeyman is a children's book written and illustrated by Raymond Briggs. It was first published in 1977.
Description[]
Deep down underground, in the dark, dripping tunnels of bogeydom, live the bogeys, a vile collection of slimy, smelly creatures who revel in everything revolting.
Fungus is a bogeyman-a particularly foul and fetid specimen. As he goes about his bogey business, the full horrors of bogeydom are revealed.