Two young scaly skinned humos, Zarchia and Ambo decide to help their friens, Aandt find his missing older brother, Yaart. This invoves a dangerous journey through the pipo system on their world where everything is powered by a pink substance known as Blubbo. On their journey they are attacked by a giant serpents, web making creatures called Greuba Greulas, and finally invado humos from the neighbouring territory. On their journey they pick up mysterious travelling companions, a white creature that seems to be able to disappear and reappear almost instantly and a conically shelled humo of the type known as a Weinisplat whom they name Babblo because of her incessant chattering. They are rescued by a part of Soldats led by the veteran,Newtobero.