Mystic Tomes (DLC)

Mystic Tomes is a Side Case available in The Sinking City. You acquire it from your room in the Devil's Reef while owning the Necronomicon DLC. It directs you to the room across the hall, where you find 7 notes leading to books around Oakmont.

Case
This Side Case mission can be activated as soon as the player wakes up in their hotel room at the beginning of the second Main Case, Lost at Sea. There will be a letter sitting on the desk (directly across from the foot of the bed) addressed to Charles Reed.

The Book Collector's Letter

 * 'A Plea for Help'

This letter, written by a collector of arcane literature and address directly to Reed

All entries in this section of the Lore tab come from addresses given during the collection mission (included in the "Worshipers Of The Necronomicon". This side mission becomes available near the beginning of the second Main Case, "Lost at Sea", after the protagonist finds a letter from a distressed fellow inhabitant of the Devil's Reef Hotel on the desk in their hotel room.

The Whereabouts of the Research Notes
The Book Collector's research notes are all located in the hotel room across and to the right from Reed's makeshift office. They are placed as follows:


 * The Collector's notes on the Mystic Tomes (DLC) are found [give location in room].

The Hunt for the Vile Volumes

 * Necronomicon
 * This book, referenced in the "Bewitched Tome" document, is found in eastern Reed Heights, at the far end of the northernmost stretch of Communion Rd., (north of Museum Ave.,) in front of the rusted remains of a gray coupe. Beside the rear of the car lies what appears to be the naked corpse of a woman, but is, in fact, an appendage of thegargantuan abomination that guards the ancient volume. The player is faced with two choices: attempt to slay the enormously powerful (but relatively slow) beast in one of the game's more difficult boss battles, or make a dash for the book and attempt to snatch it and leave the area before their lumbering foe has a chance to fatally maul them.
 * Dhol Chants
 * The Hidden Book
 * Cassilda's Song
 * Tome in the Ruins
 * Commoriom
 * Book in the Bank
 * The Book of Dagon
 * Tome of the Mair
 * Unaussprechlichen Kulten
 * The Wheel Tome
 * De Vermis Mysteriis
 * Waiting Book

Trivia

 * Like most of the evidence collected through the game, (and unlike the letters the protagonist receives from Victor the Inkeeper at the beginning of the similar collection mission, "Letters From Oakmont",) the Book Collector's notes will appear in Reed's Casebook in the order in which they are acquired.


 * The Book Collector's identity is a mystery: they are never seen nor named, and no details or obvious references to them appear elsewhere in the game.


 * Like the aforementioned unseen mission-giver, the massive, powerful monster that defends the Necronomicon is never given a formal name or classification, and no information on it can be found in either the Casebook's Bestiary or anywhere else within the gamee
 * Despite being marked on the map as an Infested Area on the map once discovered, this is the sole creature that spawns at this location, only doing so if the player approaches the back of the dead-end road (which, not uncoincidentally, is where the Necronomicon is found). This may lull first-time players into a false sense of security, leaving them unprepared for the difficult fight ahead.