author: unknown
Of the 4 bonus missions in the Bonus Mission Pack there are 3 bonus' per mission. Each bonus rewards an extra authorized book upon completion of the mission as well as 2,500 gold.
http://gw.gamewikis.org/wiki/Mission_overviews_%28Bonus_Mission_Pack%29
The Historian Durmand (
http://gw.gamewikis.org/wiki/Durmand) will not give you the extra authorized book, but you will receive 2,500 gold after you have completed the mission. Now, if you keep repeating the same bonus' when the bonus mission bonus' are maxed out on Historian Durmand (3 per 1 mission out of 4) and you repeat the bonus' you will receive 2,500 gold again after completion. Thus, receiving unlimited bonus gold. But if you take a bonus book from Historian that is already authorized, the unlimited gold bug will be unattainable.