Black Books

A Black Book is a magic imbued book found in. There are seven different Black Books scattered through the ruins of Solstheim. They are Daedric artifacts created by Hermaeus Mora to lure mortals into his service.

Reading
Opening a black book transports the reader into a region in the realm of Apocrypha. Once the region has been traversed, a book awaits on a pedestal. Reading the book grants a unique Powers or ability.

Black Books can only be read on Solstheim. Attempting to read a black book in Skyrim will result in the message: "A vision of Solstheim swims before your eyes and then is gone." When the message is acknowledged, the inventory closes and the surroundings shake briefly.

Books

 * Black Book: Epistolary Acumen
 * Black Book: Filament and Filgree
 * Black Book: The Hidden Twilight
 * Black Book: The Sallow Regent
 * Black Book: The Winds of Change
 * Black Book: Untold Legends
 * Black Book: Waking Dreams

Trivia

 * They are permanent quest items and can never be removed from the inventory.
 * If any of the black books, not necessarily the one that was read to reach the part of Hermaeus Mora's realm the Dragonborn is in, is opened, the reader is returned to Solstheim.
 * Some followers react to the Dragonborn using a black book, such as "I can't believe  you do that on purpose" or "That can't be good for you..."

Bugs

 * Upon exiting Apocrypha, the sound of paper whirling in the wind will persist. Saving and reloading the game should fix this.
 * If the Dragonborn falls into the water it results in death. When the game reloads the autosave, their health will continuously go down, even though in Solstheim. Loading a previous save is the only known fix.
 * Sometimes there are two copies of Untold Legends. Attempting to re-enter Apocrypha by reading Untold Legends may not happen, thus permanently locking the player out of that part of Apocrypha. The only known fix is to reload a previous save.