Regardless of whether or not you choose to purchase a horse initially, you're going to need to acquire the passive trait 'Riding'. This is obtained by completing a series of four quests from Éogar, Son of Hadorgar, the horse master at Hengstacer Farms. The horse farms are located in Bree Land, north of the Festival Grounds.
The first three quests involve delivering mounts to different stable-masters in Eriador. The horses for these quests are located in the stable behind Éogar, and are mounted by right clicking on the horse. Make certain to pick the proper mount for your race – men and elves ride horses, while dwarves and hobbits use ponies. Each of the quests is timed, as indicated by the blue “mounted” bar at the bottom of the screen – if the bar runs out of time, you'll be dismounted and fail the quest. As well as finishing in a timely fashion, one must also make certain to avoid riding through any pools of water deep enough to swim in, as those will also dismount you from the steed. Clicking the mounted bar gives you the option of dismounting, but again, will also cancel the quest.
Quest 1: A Fresh Steed for Bree
Éogar asks you to take one of his Blonde Sorrel horses to the stable master in West Bree. This leg is fairly straightforward – simply ride down the hill west out of the stables, and then south down the road to Bree. Once you reach the stablemaster, the quest will automatically update, and send you back up to Éogar to turn in.
We'll continue with the quest line on the next page.