found @ DB Forum
- choose the quest A5-8-3
- teleport to the Chaos Fortress lever II
- go to the lever III and find the way point just out side the gate of Malthael
- leave the game and resume the game
- get into the twonport in town,you will find you are out side the gate of Malthael.
- then go back to the leave II to kill two "Purple Name" monster not far away.
On the road,you can meet 1-2 chest. Sometimes a goblin or a rare and always two "Purple Name" ,
only within three minute!
Credit goes to crustina who found this.