Helix smiled and knelt down beside him. "Good you see with reason..." He put a nail onto the son's neck and carved a symbol onto him with great skill and detail. The carving stung and burned but didnt last long luckily for Auro. Helix looked at the mark and nodded pleased with hios work and with a snap the same mark took over his left eye in a purple burning signature of their pact. Now niether of them could break the contract without dying. "State your terms...." he hissed having to have Auro make the same kind of signature.