A Dragon hazard creature can attack a company with four Wildernesses [w] in its site path. Alternatively, Leucaruth can attack a company with three Wildernesses [w] in her site path.
"Perpetually angry and always prowling, the Worm of Ire suffers a restlessness that drives her onward to the spore of her hated Dwarven enemies."
-Kuduk Lore