Beyond the Dark Portal (History of Warcraft)

"Beyond the Dark Portal" is a book that details the history of the Dark Portal.

Found at:
 * The Scarlet Monastery in Tirisfal Glades.
 * Booty Bay in Stranglethorn Vale - inn
 * The Royal Library in Stormwind.

Trivia
This book contains lore that was originally printed in the "Human History" section of the Warcraft III manual. The events described within took place during the expansion to Warcraft II. They were also later detailed in a novel by Aaron Rosenberg and Christie Golden.