▁r ider ▁at ▁Ch est nut ▁Hill , ▁which ▁she ▁demonstr ates ▁at ▁the ▁char ity ▁R ode o ▁Day . ▁Colorado ▁is ▁quite ▁rel uct ant ▁and ▁needs ▁his ▁r ider ▁to ▁be ▁firm ▁with ▁his ▁or ▁her ▁a ids , ▁but ▁is ▁forward ▁and ▁enthus i astic ▁when ▁L ani ▁r ides ▁him . ▁ ▁Ali ▁Car m ich ael ▁- ▁Director ▁of ▁R iding ▁at ▁Ch est nut ▁Hill , ▁she ▁has ▁a ▁horse ▁ran ch ▁in ▁Kentucky ▁that ▁she ▁left ▁for ▁Ch est nut ▁Hill . ▁She ▁is ▁D yl an ' s ▁a unt ▁and ▁Nat ' s ▁mom . ▁In ▁" R acing ▁He arts " ▁Ali ▁begins ▁a ▁relationship ▁with ▁Mal ory ' s ▁d ad . ▁She ▁is ▁a ▁pleasant ▁person ▁but ▁is ▁firm ▁with ▁the ▁students . ▁She ▁is ▁the ▁replacement ▁for ▁the ▁previous ▁Director ▁of ▁R iding , ▁Elizabeth ▁Mitchell , ▁who ▁decided ▁to ▁leave ▁Ch est nut ▁Hill . ▁Many ▁of ▁the ▁students ▁question ▁her ▁ability ▁to ▁measure ▁up ▁to ▁the ▁former ▁r iding ▁instruct or . ▁Her ▁horse ▁Qu ince ▁is ▁a ▁silver ▁Thor ough bre d ▁who ▁came ▁with ▁her ▁to ▁Ch est nut ▁Hill . ▁ ▁Lyn sey ▁Harrison ▁- ▁P atience ▁D uv all ' s ▁best ▁friend . ▁She ▁shares ▁a ▁room ▁with ▁D yl an ▁and ▁H oney ▁in ▁books ▁ 1 - 6 ▁and ▁with ▁just ▁D yl an ▁in ▁book ▁ 7 . ▁Lyn sey ▁has ▁made ▁fast ▁enemies ▁with ▁the ▁four ▁main ▁characters