Leveling from 61-85 in two hours with Potion of Ancient Knowledge.

This is my first attempt to use the combination of Recruit a Friend, Potion of Ancient Knowledge, heirlooms and guild perk to see how far I would be able to get.

On a side note: The overall time it took to do it was about four hours because there I logged my character out and was looking for the best quests in Northrend to do so the potion would give me as much xp as possible.