One claw flat-out misses (rolled 12), but the other claw hits (rolled 14, beat miss chance).
Mouse takes 8 points of damage and has 14 hp left.
Round 5: Mouse steps to 65N15E5Z and shoots a ray of fire. The ray hits (14 touch) and its deadly accuracy prevents Paris from dodging (18 Ref save vs. 22 DC). Paris takes 9 and gets pushed back 10 feet to 80N35E (3 Str check).
Paris has 24 hp left. Mouse has 12 PP left.