Investigate the shrine of Rea.

Kill Malthael.

Kill Adria.

Complete all quests in Act IV.

Complete all quests in Act III.

Reach sector 2.

Kill Ghom.

Complete all quests in Act II.

"Something unexpected happened when I gave my wisdom with the fruit of the conker tree. The tiny creatures use their newfound wisdom to mimic human beings. I have yet to tire of watching them. They're quite entertaining."

"This world is strange. Bizarre, even. I feel like I am lost in a dream."

"Left eye, fingernails, leg... So wise, so clever, so defiant!"

"The stench of death grows stronger. Is this place hell? Or... No matter. At this rate, I'll surely die...die..."

Die.