Creepy Mathematics
(Review 11)

'After receiving the book, Ningning grabbed it and began to read right away. I asked her if she found anything terrifying about the book, and she said, "It's not scary at all!" The spooks were also "very pretty", according to her. They were the "cute type"!'

Ningning's Little House
A Spectre at the See-Saw from the Creepy Mathematics Series