Kill Murgurgl first for the key ( 473, -115, 567 ) /waypoint 473, -115, 567. He has a bad knockback so don't fight too close to the edge of the water. He is on a 72 min timer. (Added: Had to wait 103 min for it to spawn)
Kill the 4 grouped Hypnoglobs around Threeko ( 448, -108, 727 ) /waypoint 448, -108, 727. Each Hypnoglob is 72 v, but they seem to be severely underconned. They are on a 15 min spawn.
Hail Threeko again after the hypnoglobs are dead. Only one person can get this update at a time, after hailing him he takes 15 mins to respawn. (It will not be necessary to kill the hypnoglobes again)
Note that if your inventory is full you cannot harvest these coins and you will receive no message warning you of this. Your quest will not update. You will then not be able to click on the boxes and will require GM assistance to fix this.
Go to Kurn's Tower ( -1939, -371, -1919 ) /waypoint -1939, -371, -1919 and dismantle the Skeleton Spy (a shambling skeleton) by hailing and attacking him. This will start a 15-minute timer.
Travel up the ramp and defeat the four waves of horsemen within 15 mins (praetorian trackers) which can be found progressively up the ramp. They are in groups of 2, and range from 70 vv to 72 v. The fourth group is four 72-73v, a Heroic encounter. When you reach the top, you must defeat The Shadow Rider, 71^, with a lvl 71vv praetorian tracker who can be found on the far side of the upper level. Be aware that the horsemen may fear you.
PLEASE NOTE: As of 14th February, 2008, NPC Grand Acumen Ralosk is back and is giving you a one time offer to exchange your old item for the Bangle of Thuuga which gives now +Spell Damage instead of +Heal "if you completed the quest before this date". In order to perform this exchange you have to sell your previous reward (for 69g 12s) to the merchant of your choice and then talk to Grand Acumen Ralosk to be offered a chance to buy the Bangle of Thuuga (for 70g).