Cantankeri
"The Cantankeri are lumbering, half-fossilised isopods that will attack anything they disapprove of. Given that they are very ancient and murderously grumpy, that means almost everything."[1]
The Cantankeri are large, floating isopods with a very grumpy disposition. They can be found in all corner of the High Wilderness. Their bodies are made almost entirely of stone, likely as a result of sleeping inside of rocks for a very long time.[2] They seem to prefer to slumber near large stores of hours, a fact that proves very inconvenient to anyone trying to mine hour geodes.[3] Cantankeri are best known, however, for their terrible tempers. Reportedly, they have a murderous hatred of everything "new" - a category that, due to their extreme age, seems to include almost everything.[4]
In rare cases, moments of bitterness can form into hour geodes inside of a cantankeri's heart, making them grow in size and form extra layers of rock over their bodies.[5] These elephant-sized isopods are called Bull Cantankeri and are treated as kings among their kind.[6] Smaller cantankeri can sometimes be found tightly clinging to the stomachs of their larger kin, though the reason for this behavior isn't clear.[7]
According to skyfarers' tales, the cantankeri lived on their own planet a long time ago. But as its condition deteriorated, they refused to solve the problem or leave it behind; instead, they chose to burrow into its crust, and slept there until it was destroyed, leaving them to roam the new and unfamiliar skies with endless bitterness.[8]