Rising from the Ashes

Summary: Peter is nobody's fool, but that is part of the reason why Alpha Scott McCall, in a rare moment of good foresight, decides to send him to negotiate with an old, established pack of Viking berserker werewolves who are angling to beg, borrow, or steal Beacon Hills' resident banshee. Peter would totally approve of this plan if it weren't for the fact that traditionally, such negotiations are only permitted to be conducted by a mated pair of the pack... -OR- How Peter MacInroy Hale, werewolf, ends up being mated to Jean Christophe Argent, hunter, in Derek’s loft with Scott McCall as witness, and how everything goes wrong from there. Peter blames Stiles completely.