Initiative Order (Rounds Five and Six)
Bat Swarm #1: 22 (fled to chasm but not 100% dispersed, rd. 5)
Bat Swarm #2: 20 (swarms on rd. 6)
Lorien: 17 (caught in gust of wind until it ends, delaying)
Dire Rat: 11 (entangled/immobilized)
Dire Rat: 11 (frees itself in rd. 6, still entangled until it clears the web)
Caerth: 9 (gust of wind ends on his turn, rd. 5)
Aureus: 8 (exited cavern, rd. 4)
Quinn: 8 (exited cavern, rd. 4)
Phar: 4 (caught in gust of wind until it ends)
Rat Swarm: 3 (dispersed)
I'm assuming the PCs won't make any offensive attacks until the 2nd bat swarm descends on them in round 6 or if the two dire rats get loose*. (It isn't obvious that the remaining bats are going to swarm. Characters can roll a Knowledge [Nature] check, DC 10, to see the signs that the other bats are going to attack.)
Both Lorien and Phar take 1 point of bleeding damage in rounds 5 and 6, until successful Heal check or magically healed of at least 1 point. Lorien will wait until the gust of wind disperses before acting.
*Rolling that in my next post.