Round 7: Icy Cool is deafened (natural 1 Fort save) by the horse's piercing shriek.
He doesn't hear the three missiles hit him for 10 points of damage. He has 62 hp left.
Round 8: Icy Cool breathes and Equuos takes the full brunt of the cold (9+2 Ref save). He takes 15-10 damage and has 26 hp left.