This Driller-Dragon appears in A Hero's Guide to Deadly Dragons. He leads a group of Driller Dragons.

How to Train Your Dragon (series)

A Hero's Guide to Deadly Dragons

It attempts to get into the Meathead Public Library to get to Hiccup, Fishlegs, and Camicazi. It manages to stick its head through the window. It tries to get through further, but Hiccup grabs a marble statue of Thor and threw it between the dragon's eyes.

Physical Appearance