Also drops off of "a ra`tuk decapitator's corpse".
I've actually helped a number of people farm this item, and it seems to be most commonly found inside the temple (in Barindu of course). The mobs that drop it can all be rooted and none of the ones we fought summoned. My last group there just root-dotted the bogies.
The best place we found to set up camp was right outside the sewer entrance room... nothing roams there, you have many pulls a short distance away, and even a little room to do just about anything (kiting might be too much of a hassle though). Bring a little lull / harmony capability and there are even more spawns available.
Just an FYI, I was hunting for a ratuk jaw for the new paladin epic by the qinimi/barindu zl and it dropped off one of the entrance ratuks. Thing is, he gloed a kind of yellow orange, and it wasn't from the brazier. I think they glow like the wurms in GD do for their bile. SO if you see a glowing ratuk, he probably has the page on him.
I was able to collect both Page 1 and Page 2 with a group in Barindu hanging out near the Ferubi zone line. Got both within, say 4 hours.
I dont think either dropped from a named, but cant be sure. We also got a very nice 100hp earing drop here. The earing didnt drop from a yellow con, but dunno if it was named.
Yellow cons here hit very hard and fast. I have 9.5k hp, 2100AC and the named killed me a couple times. Our cleric couldnt keep up with heals before mob was slowed.