Billy Broccoli is used to getting expert advice - wanted or not - from the ghost with the most, Hoover Porterhouse. The Hoove has smooth moves and a silver tongue ... and he isn't shy about sharing his words of wisdom! But when a night at the museum finds Hoover face-to-face with the ghost of a powerful princess, his brain turns into mashed potatoes. Now the tables are turned and it's up to Billy to help Hoover find the words he needs to make a new friend.
| Author | Henry Winkler, Lin Oliver |
| Publisher | Scholastic |
| Year of publication | 2014 |
| Number of pages | 202 |
| Language | English |
| Format | Paperback |
| ISBN-10 | 1407132318 |
| ISBN-13 | 9781407132310 |
| Illustrator | Tony Ross |
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