by Shoggoth on the Roof » Fri Oct 24, 2014 10:49 am
It's in the Sewer. Go to the Mall food court, then go east to the Sewer entrance- you can Hunt the event from there.
A big monster like that on such a pointed roof... You may ask 'how does it stay up there, if it's so difficult?'
That, I can tell you in one word: tentacles!