The Traitor's Shadow

This quest is part of the The Farstrider Enclave quest chain. This quest chain starts with The Farstrider Enclave

Objectives
Travel to Dawnstar Spire in the Ghostlands and search for any clues involving Dar'Khan's past.

Description
Dar'Khan Drathir is believed to have returned from the dead to rule over the armies of the Scourge in the Ghostlands. Dar'Khan aligned himself with the Scourge long ago... yet he was once a living, breathing elf. Much of his time was spent inside Dawnstar Spire, northeast of here. He hid there for many nights, scheming against his own.

Search the tower for more information,. Perhaps he had a journal or kept notes. One never knows where useful information might present itself.

Rewards

 * 1150 XP (or at level 70)
 * 250 reputation with Silvermoon City

Completion
After browsing through the first few pages of this old book, you come to the conclusion that it once belonged to the one known as Dar'Khan Drathir.