In the fifteenth book of The Critter Club series, Liz is excited for her sleepover at the museum…until she hears some spooky noises!

Liz can’t wait for her sleepover at the Santa Vista Art & History Museum! After all, it’s been her dream to stay overnight at a museum. But when the lights go out, Liz starts to hear noises: a flutter here, a rustle there. Where are the noises coming from, and what is making them? Will this museum sleepover actually turn into a nightmare?