Uncle Yonti pours some of the blue liquid from the bottle into a glass, and Tulli closes his eyes and gulps it down all at once. Everyone holds their breath and waits. After a moment Tulli opens his eyes and looks around. "Well?" urges Yom Tov. "What do you feel now?" "Uh… I don't know. Same as before, I guess. Maybe a bit different." Tulli sounds confused. A mysterious lab. A secret. A locked door. A terrifying dog. Another exciting adventure with Batya and Bentzi!