I came here looking for my mage epic pieces. As a level 52 Mage, I found it easiest to camp Rathyl room and the 3 mages in the room before him. I occasionally would run out and kill the injured halfing ang Linara Parlone as well as the dark-boned skeletons in the next room.
My experience went like this:
While running in, I killed every magician I saw and got a shovel, and the torn page of mastery:wind on the way to the Rathyl camp. Once at camp, my cycles went like this:
3 Mages - nothing
Mage (Rathyl PH) - torn page of mastery:wind
3 Mages - torch, damask robe
Rathyl/Rathyl Incarnate - hollowed bone bracers
3 Mages - nothing
Rathyl/Rathyl Incarnate - torn page of mastery:earth
3 Mages - nothing
Mage (PH) - damask gloves
3 Mages - torn page of mastery:earth
Mage (PH) - nothing
3 Mages - nothing
Mage (PH) - nothing
dark-boned skeletons (2 in next room) - nothing
3 Mages - simple defiant plate boots
Rathyl/Rathyl Incarnate - nothing
3 Mages - damask collar
Rathyl/Rathyl Incarnate - nothing
3 Mages - damask veil
Mage (PH)- nothing
an injured halfing - nothing
Linara Parlone - nothing
3 Mages - torn page of mastery:fire, damask leggings
Mage (PH) - nothing
an injured halfling - torn page of mastery: wind
dark-boned skeletons - nothing
2 Mages + Ekeros - blackened sapphire
Linara Parlone - nothing
Mage (PH) - nothing
3 Mages - broom, damask leggings
Rathyl/Rathyl Incarnate - nothing
dark-boned skeletons - nothing
injured halfling - leatherfoot raider skullcap
Moosh (just because he aggroed me) - simple defiant wooden shield
Linara Parlone - rough defiant cloth wristwrap
3 Mages - torn page of mastery: wind
Rathyl/Rathyl Incarnate - nothing
3 Mages - nothing
Rathyl/Rathyl Incarnate - rough defiant cloth sandals
injured halfling - leatherfoot raider skullcap
Linara Parlone - nothing
dark-boned skeletons - torn page of mastery:earth
3 Mages - nothing
Rathyl/Rathyl Incarnate - nothing
2 Mages + Ekeros - torn page of mastery: earth
Mage (PH) - nothing
Linara Parlone - nothing
injured halfling - nothing
dark-boned skeletons - nothing
3 Mages - simple defiant plate gauntlets
Mage (PH) - torn page of mastery: fire
injured halfling - nothing
Linara Parlone - nothing
dark-boned skeletons - broom
3 Mages - nothing
Rathyl/Rathly Incarnate - damask sash
injured halfling - leatherfoot raider skullcap
Linara Parlone - nothing
dark-boned skeletons - torn page of mastery: fire
3 Mages - damask gloves
Mage (PH) - nothing
injured halfling - simple defiant plate gauntlets
Linara Parlone - torn page of mastery: water
And i was out of there!
Note: killing the halfling and Linara will affect your faction. My mage happens to be Dark Elf, so she didn't care so much.