9A dangerous book is missing from the Library of Doom. The book has no words, except for one single sentence. Whoever reads it disappears. Forever. When the book appears in a classroom on the first day of school, it will be up to the Librarian to close this new chapter of fear. Uncover hidden threats and dark mysteries with SECRETS OF THE LIBRARY OF DOOM, a page-turning chapter book series from bestselling author Michael Dahl.