Who's Your Mummy?

Got the audio for this one with a $10 credit I got from audible for the beta rewards. Read it for my Goosebumps July!
This is book 6 of the HorrorLand spin-off. I did not realize that each of the series finishes with a continuation of the ‘Enter HorrorLand' short from book one, so sadly I skipped it for now and will have to go back to them all. It kind of would have been cool for all of the shorts to be released into its own book, but it doesn't appear that they did so sadly. 
Abby and Peter get sent off to their uncle's while their grandmother recovers. But deceit is at every corner, things aren't as they seem, and perhaps people aren't either. No spoilers thought, so MUMs the word.  
Personally a fun read, but not as good as others. 3/5*