Smidvarg

Smidvarg is an Alpha Night Terror who appears in Race to the Edge.

History
In When Darkness Falls, Tuffnut discovers Smidvarg and his Night Terror flock in the shape of a larger version of themselves, but no one believes him. However, the "large dragon" is later found and split up into several tiny Night Terrors. Hiccup and the twins notice one, white Night Terror coordinating the attack, and so, the twins capture it, thinking that it would solve the problem. Once captured, the name, Night Terror, was coined, though Tuffnut named the Alpha Smidvarg. The riders realized that the other Night Terrors were getting attacked by Changewings because, without their alpha, the other Night Terrors were easy prey. Hiccup and the twins then released Smidvarg so that he could go save his flock from the Changewings, which he did. Smidvarg and the flock later joined the Dragon Riders as sentries of the Dragon's Edge, and together they make up the shape of a Night Fury, to Toothless' excitement.

Smidvarg's next appearance was in Gone Gustav Gone, where he and his flock were being harassed by Gustav and Fanghook.

He next appeared in Reign of Fireworms, where he and his flock posed as a fake Fireworm Queen to lead the Fireworm flock away from the Dragon's Edge.