Defeating Vaeshok

Takahara Masikawa tells you, "I have a task suitable for one who has visited the Dark Isle. Listen, and I shall instruct you."
Takahara Masikawa tells you, "There is, upon the Dark Isle, an undead Ruschk named Vaeshok. He has thrown off the mantle of his former master, and now seeks to serve a new master - the dark power behind the Blight."
Takahara Masikawa tells you, "Go and defeat him, then return to me. I shall know if you have succeeded."

Walk Through

1. Talk to Takahara Masikawa inside the Radiant Blood Stronghold @ 12.8N, 0.7E in Zaikhal
2. Head to Dark Isle to kill an undead Ruschk named Vaeshok. He's located in a cave @ 86.9N, 59.7E (take all rights)
3. Kill Vaeshok and return to Takahara for a reward.