The Thirteen Months

The Thirteen Months is a book found in Dishonored.

Transcript
[Excerpt from a book on the calendar and proper duration of the year]

''As was laid down long ago, there are thirteen months, each 28 days in length. In the last hours of the year, the High Overseer will sound the Fugue Feast.''

The Month of Earth The Month of Seeds The Month of Nets The Month of Rain The Month of Winds The Month of Darkness The Month of High Cold The Month of Ice The Month of Hearths The Month of Harvest The Month of Timber The Month of Clans The Month of Songs

Location

 * The book can be found next to a safe and note on the way to Granny Rags' lair in the Old Dunwall Sewers during the mission, The Flooded District, and only if Slackjaw and she appear at the end of it.

Trivia

 * The months of Seeds and Harvest were accidentally inverted during the game's development. The official artbook features the correct version of this book.