Someone Used a Token

By the time Jon returned home, it was already late in the evening and he still had to finish his homework for the next day. He ran upstairs and into his bedroom, intent on getting started as soon as possible. But he stopped when he noticed that one of his "dream tokens" was missing. There should have been two of them: the Greek temple one and the schoolyard one. But one of them was gone. He was about to see which one it was, but got distracted by a faint warbling sound coming from behind him. He turned around and looked at his bedroom wall in total shock. At the center of the wall was a sparkling greenish-blue spinning vortex. "Oh god," Jon said aloud. "Someone used one of the tokens." He turned back around and looked to see which token was missing.