Rock Crab (The Wandering Inn)

Rock Crabs are a fictional species featured in the novel The Wandering Inn.

Description
Rock Crabs are gigantic crabs who disguise themselves as large boulders, which their shell greatly resemble. When prey gets close, they will take their large pincers out from underneath the shell and attack; if need be, they can move rather fast on their numerous legs. They are vulnerable to bluefruit seed poison, but only moderately to Acid Fly acid