How to get the Rune of the Horse, AKA "The Gift of Those That Run"

1) Punch a guard at the start of the game
2) Listen to the guard warn you not to do that again
3) Do that again.
4) DODGE! DODGE NOW!
5) Get guards stuck on tree by rolling through it
6) Hit the guards though your cover then immediately roll away
7) Do until guards guard their last
8) Move down and encounter 3 more guards.
9) Trap guards on the opposite side of the L shaped wall on the bottom left
10) Repeat step 6 and 7
11) Move down until another 2 guards show up.
12) Run back up to the wall
13) Repeat steps 9 and 10
14) Continue down

.................................. Optional potential other route.........................................

Just run, after all its called "The Gift of Those That Run". Just because I fought the guards doesn't mean you need to. (You are probably not supposed to fight them actually)

Bloodyfish:
Worth noting that you can find this rune in the dungeon, too.