Escape from Shudder Mansion

Escape From Shudder Island is the fifth book of the Goosebumps SlappyWorld series. It will be released in June 26, 2018.

Plot
In an old-fashioned "trapped-in-a-haunted-house" story, twins Riley and Scarlett receive an interesting assignment from their teacher, Mrs. Stermon. Everyone in their class needs to make a documentary video about an exciting adventure that they had experienced.

Mrs. Sternom gives the twins a suggestion, along with their friends, Carter, Lee, Danitia and Mia. Mrs. Stermon shows the twins a brochure about a scary old house on the edge of town called Shudder Mansion. She also says that if Riley and Scarlett can stay there overnight with their parents, Mrs. Stermon will give them all A's and even extra credit.

So Riley and Scarlett go to the haunted house. But just how scary is Shudder Mansion?