[@Eviledd1984][@Gentlemanvaultboy][@Typhon][@Bluetommy][@Storybookandco]
The demon left little on the kids that were in the basement. Which meant they had most likely hadn't been directly involved. Which rose the question of why they had been down there. Had the one that was missing intended to hand them to the demon as a sacrifice? Or had they been witness to prove that the missing child had succeeded. 

The missing child was a girl named Sage. If the agents asked around no one in the school knew her very well. It could be that she had been seeking acceptance of her peers. If anyone asked the students that had been found that they didn't remember how they had gotten to school. They couldn't tell the agents much about the demon since the first things they remember was the two men jumping into the basement. 

When the basement was investigated they would find nothing at first. Nothing that stood out as out of the ordinary. But if someone who could see magic went into the basement they would be able to see the runes in the far corner of the basement. Someone, probably Sage, had gone a lot of trouble to hide them. A deeper search would reveal a demon trap on the floor. One that hadn't held the demon because it hadn't been made exactly correct.