Quest talk:North Bes Pelargic quests
From Discworld MUD Wiki
Joining the FBI failed at 4 days, 15 hours and level 101. Failed again at 8 days and level 116 (trained a lot of non-primaries). I suspect the requirement to start the quest is level-based. Failed a third time at 11 days, 18 hours and level 134. "Failed" at 150 (possibly a bug, as there was no failure message, the quest simply didn't continue. Reported it), succeeded at level 151 and 15 days, 8 hours of age.