The man in question stood, sinking to his knees at Draco’s feet, and Draco held his hand out for his arm. Rowle held it up with little hesitation, and Draco made a small cut on his inner forearm, directly over the dark mark spilling the blood into a vial he pulled from beneath his robes and sealing the cut with a spell discovered during their bond research, designed similarly to the house-elf bonding magic. 