As stated in How to Ride a Dragon's Storm, the Northern Wanderers developed a hatred for Vikings due to the fact that their people were often abducted by Vikings to be used as slaves.
Wanderers are also considered to be good sailors and trackers due to their heritage.
Also as mentioned in the books, Wanderers live in the northern lands and waters of the Barbaric Archipelago.
Wanderers tend to wear animal skins over their bodies and sometimes even as hoods. Most Wanderers are rather unkempt and dirty due to their constant wandering. Bearcub’s grandmother had long nails but it’s unknown if this is just her personal look
Wanderers appear in a prelude just before the first chapter where Bearcub’s grandmother predicted doom on the ship and cursed the boat. Later, on the American Dream 2, Hiccup, Camicazi, and Fishlegs walk by the slave hatch and hear the Wanderers. On the way to America, Hiccup falls into the hatch, agrees to help the Wanderers escape and receives a Slavemark. When helping the Wanderers escape, Hiccup, Fishlegs, and Camicazi can’t escape themselves and the Wanderers float off seemingly ditching them. In the final chapters however, it is revealed that the Wanderers were only going back to get better boats in which they rescue Hiccup, Fishlegs, and Camicazi in and then send them off then the Flying Machine.
A brief mention is made that Gumboil’s mother was a Wanderer.
Wanderer should are present on Tomorrow after the final battle when the book mentions that even Nobert the Nutjob the Nutcase was there disguised as a Wanderer presumably in a group of Wanderers.
- According to Egginarde in How to Seize a Dragon's Jewel all Wanderer grandmothers are scary, though her grandmother is the same Wanderer Hiccup met on the American Dream 2 in How to Ride a Dragon's Storm.
- Wanderers are the second tribe mentioned in the the book series that wear animal skins and furs instead of clothes. The other tribe is the Outcast Tribe.