Queen Asylla's Journal is a tome in Act I of Diablo III. It is needed to complete the achievement A Quick Study and can be found in The Cursed Hold, first room to the right, with the mirror in it.
It reads as follows:
- "Starved of the sun, I no longer know what day it is. I can hear the Warden, my husband, and that dog Lazarus discussing my fate. My life will be over soon, yet I fear more for my poor Albrecht's future in the wake of his father's madness. If only Aidan were here."