In reading order
The Index Insects
Michael Dahl
The Eraser Strikes Back
Michael Dahl
Raiders of the Lost Archives
Michael Dahl
Dead Letters
Michael Dahl
Invisible Ink
Michael Dahl
The Bottomless Book
Michael Dahl
The Ghost Riddle
Michael Dahl
The Beast That Borrowed
Michael Dahl
The Puzzler's Riddles
Michael Dahl
The Grim Reader
Michael Dahl
Little Bookshop of Horrors
Michael Dahl
Doom School
Michael Dahl
Crushing Covers
Michael Dahl
Library Wing Warriors
Michael Dahl
The Book That Ate Me
Michael Dahl
The Ghoul in the Glossary
Michael Dahl
It Came from a Comic
Michael Dahl
Monster in the Margins
Michael Dahl
The Haunted Handwriting
Michael Dahl
Shifting Shelves
Michael Dahl
Bookmarks of Blood
Michael Dahl