?????? 這是A to Z mysteries的作者Ron Roy另一系列作品，小主角是A to Z Mysteries主角的表兄妹。如果喜歡A to Z Mysteries，那么必然會喜歡Calendar Mysteries。
推薦年齡：6-9歲
13冊目錄：
Calendar Mysteries #1：January Joker???????????????? 380L
Calendar Mysteries #2: February Friend??????????????? 470L
Calendar Mysteries #3: March Mischief????????????????? 410L
Calendar Mysteries #4: April Adventure???????????????? 470L
Calendar Mysteries #5: May Magic????????????????????????? 410L
Calendar Mysteries #6: June Jam??????????????????????????? 490L
Calendar Mysteries #7: July Jitters?????????????????????????? 510L
Calendar Mysteries #8: August Acrobat???????????????? 510L
Calendar Mysteries #9: September Sneakers??????? 480L
Calendar Mysteries #10: October Ogre??????????????????? 400L
Calendar Mysteries #11: November Night??????????????? 480L
Calendar Mysteries #12: December Dog???????????????? 460L
Calendar Mysteries #13: New Year's Eve Thieves??? 480L
