In a second adventure after The Trimoni Twins and the Changing Coin (2004), Beezel and Mimi, identical and magical twins, travel with their tutor to Amsterdam to investigate strange messages from their Uncle Hoogaboom. Convinced that there is a valuable treasure hidden in the house somewhere and knowing that the twins are clever, Uncle Hoogaboom enlists their help in solving the mystery. What he does not realize is that the twins possess real magic in the form of a coin capable of changing people into animals, and vice versa. Much to the twins’ surprise, Uncle Hoogaboom’s partner in the hunt is none other than teen movie star Wiliken Riebeck. Stalked by the paparazzi, Wil and the twins try to help Uncle Hoogaboom. Unfortunately, a reporter finds out about the magic coin, threatening to expose the twins’ secret. A wild adventure, with many quirky characters, this series is living up to its expectations. (Fiction. 8-12)