中文简介：

安吉尔刚到一所新学校，很难交到新朋友。他在图书馆的一本书里发现了一张神秘的纸条，于是开始寻找写这张纸的人。很快，他发现自己身边的新朋友也都热衷于破解这个谜团！

这是一个关于新友谊、线索和神秘探险的欢快故事。

英文简介：

Angel just arrived at a new school and is having trouble making friends. He finds a mysterious note inside a book at the library and sets off to find out who wrote it. Pretty soon, he finds himself surrounded by new friends who are all keen on deciphering the mystery as well!

A cheerful story about new friendships, clues and one intriguing quest.