Ancient Falmer Tomes

Known locations

 * Unknown Book, Vol. I - Use the Portal to the Shrine of Learning leaving towards the northwest. Follow the river until you get to the pillars across from the waterfalls. There should be a chest, a skeleton, and Unknown Book, Vol. I just north of the tallest pillar.
 * Unknown Book, Vol. II - First you need to find the Emerald Paragon and use it at the Paragon Platform to get to the Forgotten Vale Overlook. Once inside, follow the river north staying to the right side. Before the waterfall there will be a chest, some weapons, and Unknown Book, Vol. II.
 * Unknown Book, Vol. III -
 * Unknown Book, Vol. IV - Found in a Falmer Village in the Vale between the 4th and 5th Wayshrine.

Appearances

 * The Elder Scrolls V: Skyrim