The wolf shuddered, then howled. It lunged for Wormtail who squeaked and darted beneath the huge four poster bed, where Remus had been lying only minutes before. James barged through the dilapidated door of the Shrieking Shack, but, before the wolf could attack him too, morphed into a magnificent stag.
Prongs made a strange bleating sound and Padfoot, already in dog-form charged into the room. The werewolf lost all traces of hostility, and bounded quite enthusiastically over to the stag and the dog. His tail even wagged a bit.
Flanked by Padfoot and Prongs, Moony was led up the earthy tunnel, and out into the Hogwarts grounds. The small part of Remus that was not in a wolf mind-frame was worried about leaving the safety of the Shack. He fretted about it incessantly, but even more so after Sirius had tried to trick Severus into the tunnel on a full moon, in fifth year. He would have succeeded if not for James.
Remus completely trusted the other three marauders. They after all, had not abandoned him upon learning his dark secret, but had devoted their time into becoming Animagi, to make full moons more bearable. Remus was more grateful to them than he could possibly express.