Diary of a Dummy

Diary of a Dummy is the tenth book in the Goosebumps SlappyWorld book series. Its release date is currently slated for March 3, 2020.

Blurb
What do Zoey and Billy Traister do when they find an abandoned ventriloquist's dummy in an empty lot? They take him home, of course! As the pair tries to figure out why someone would throw out a perfectly good dummy, they accidentally bring Slappy to life. A night of horror ensues until the siblings put Slappy back into his case. But when they find Slappy's diary and clues that could lead to gold, they'll have to find Slappy's second diary while evading the evil dummy and other terrors.

Trivia

 * The title of this book is a possible reference to the Give Yourself Goosebumps book Diary of a Mad Mummy.
 * The cover depicts Slappy as being left handed. Coincidentally, author R.L. Stine is left handed as well.
 * The oozing green substance on the cover looks very similar to the substance Monster Blood