A stranger named Skuld the Sorceress appears on Berk in "The Endless Night" and mysteriously seems to bring about Night during the Day and the vanishing of villagers. Wreckless Ericsson was at his lookout post, and is later found missing. He is one of the "disappeared" that the reader finds out about. Later however, the Dragon Riders discover that those that disappeared were actually kidnapped to be sold as slaves by the Thunderhead Tribe, who are working with Skuld the Sorceress. There is no image of what Wreckless Ericsson looks like.