So, he searched. Portrait, after portrait, after portrait. Obviously, the Nott and Parkinson estates were first as he wanted to mark those off of his list. Theodore Nott never struck Severus as unintelligent, so he knew the boy would not take the Parkinson girl where they would easily be found. Since then, he’d searched nearly fifty other estates– staying in each portrait for long enough to observe if there was any activity at each, and who was present. The estates were old, and most of the families had abandoned them after the war; lines either died off, or the owner was in Azkaban.