[@KatherinWinter]

"Just in there huh?" Curwen muttered, looking down into the basement. The kids that crawled out of the hole looked all right, just shaken up. While the children followed the two men out of the building the dog that had brought the rope, a small non-threatening looking mutt with stubby little legs and big soulful eyes, tottered along beside them occasionally accenting quick, nervous pats from them. "He's a comfort dog." Curwen said to the curious look one kid gave him, keeping pace with the little hound. "I keep him around for situations like this."

Of course, little Tommy wasn't just acting as a comfort dog. There were only traces of that demon in the basement. That means it had only come to form in the basement. The dog was searching for any unusually high traces of demonic taint among the students, the kind that would be left behind in a possession victim or stained the aura of a summoner. If the dog indicted any of them he would casually lead them off into one of the empty rooms for a private chat.