The book tells about a group of children having a Halloween sleepover party at school (Kindergarten).
The Halloween setting with masks and long shadows in the dark is the perfect backdrop for this discussion".
[1] Vicki Arkoff positively evaluates the text and the illustrations, but sees a problem especially for American readers: "Right off the bat it's clear that this simple picture book is a translated work because of its 'this would never happen in this country' premise.
Sure enough it's a German tale about what happens during a Halloween sleepover party as nighttime falls and common fears begin to arise.
[2] Stan Steiner sees in the book "a cute solution to help overcome those ghastly fears around Halloween".