When the Potter family, and his friend Peter Pettigrew walked through the door on Halloween, Sirius Black was thoroughly surprised. "What you guys doing here?" he asked. They all sat down at the dinner table and James told him everything while Peter sat looking disappointed in himself. At the end Sirius roughly stood up and ran towards Peter, only to be stopped by James. "You little rat!" he screamed. "I can't believe that you would sell your own friend to Voldemort! Step aside James, he's not worth protecting!" "Sirius, calm down, I'm sure Peter was very frightened and I do not blame him for telling Voldemort. Now if you want security for your own house you could make Peter make an Unbreakable Vow." "Fine." Sirius replied shortly. "James you will be our Bonder." Sirius and Peter liked hands and James placed the tip of his wand on their hands. Sirius began to speak, "Will you, Peter, keep the secret of Number Twelve Grimmauld Place?" "I will," said Peter. A thin tongue of brilliant flame issued from James' wand and wound around the linked hands. "And will you, Peter keep the secret of the Potter's residence here?" Sirius asked. "I will," replied Peter. A second tongue of flame shot from the wand and interlinked with the first, making a fine, glowing chain. Once again Sirius spoke, "And, should it prove necessary, die in order to keep both secrets?" "I will," said Peter, shaking. James' somber face glowed red in the blaze of a third tongue of flame, which shot from the wand, twisted with the others, and bound itself thickly around Sirius' and Peter's hands like a rope.