The case of the counterfeit painting / Brezenoff, Steven

When Clementine Wim spots a famous painting being carried out of the Capitol City Museum, she's astonished to find the same painting still hanging on the museum wall when she enters the building. Not even Clementine's mother, the museum's assistant curator, believes her story, so it's up to Clementine to convince everyone and right the wrong.

While searching for her friends at the Dino Festival, Clementine Wim runs into two people carrying what she thinks is the Tiled Lunch Counter (a famous painting) away from the Capitol City Art Museum, but when she checks the painting is still hanging in place--and before she can track down the thieves, and prove that the painting now in the museum is a forgery, she has to convince her friends that she was not imagining things.