OOC: You're fighting a teleporting scorpion with reach.
The scorpion takes an AoO and misses. (Rolled 18) The hound bites for 10. The scorpion has 2 hp left and is not tripped. (Rolled 22 vs. 28)
Round 265: The scorpion steps back to 95N15E and hits with a claw. (Rolled 25) It then grabs the yeth hound, pulls the doggy into its square, and constricts. The hound takes 11-10=1 plus 7 constrict damage, leaving it with 11 hp. The scorpion misses with the rest of its attacks.