Brisbane dragging a young half-orc monk and her friend on a plot quest that led to the downfall of Sinthar. Everyone else was 15-25, we were level 7 or 8 perhaps? Somehow we survived and were completely awed by the event.
Also Innocent Investigations, run by Minerva. I will never forget that series and the imagination, bickering, discovery, inventiveness, and achievements that went along with it.