Shoggoth

Shoggoths are the spawn of Outsiders, bred to sapience. They appear in "War Cry".

Description
Shoggoths appear to be spirals of meat-colored substance, studded with mouths, teeth and fangs. Bred to sapience, they can only subsist on sapient beings.

According to Harry Dresden, shoggoths are doomsday devices, able to consume the population of Manhattan in one day, growing exponentially in the process. Catherine Taylor thinks the release of one would usher an era of horror and carnage as yet unknown to man.

"War Cry"
In "War Cry", the Red Court is trying to get a hold on one of them, something Harry Dresden and Catherine Taylor disagree to. Taylor has been magically bound to it, to keep it dormant. Dresden suspects the involvement of a high-ranked member of the [[White Council], but has no idea about who he is.