Detective Tip #3: Imagine the Possibilities. When Anita B.’s hand-made robot goes missing right before the science fair, Wednesday and Woof take the case. But it’s hard to solve a mystery while the whole class is watching and waiting. And that’s not even everything! While the whole class is looking for the robot, their hamster disappears too! Are the two cases connected? Is Wednesday in way over her head or can she and Woof use the scientific method to solve this double mystery and save the science fair?