It is said the Quillmane PHs always head North and I thought it was so as any time I have gotten the right cycle all PHs headed north. However, this evening I saw variations. Most headed straight north. A couple headed NNW or NNE and one goofy ******* headed straight East and it was the Quillman PH. My finding the PH has been mostly the product of luck and knowing the spawn timer.
The cloak is MQable from my understanding and not Lore so if you find the PH and have the time. Load up and help your mage friends.