if the others notice, they don't say anything. The hunting horn sounds, and the others take off-Zen lags behind, having no clue how to control the horse
The horse goes racing, tearing past trees and vines and jumping over roots and stray branches, going deeper and deeper into the woods with reckless abandon, whole world blurring around Zen until finally-quickly and abruptly-the horse comes to a stop, causing Zen to fall off it's back.