Awesome! Let me know how it goes.
Success! A party of 4 (Cleric, Magic User, Ranger, Fighter) managed to rescue Flindia. The swarm of spiders was an embarrassing display of combat, so they all had a few minor wounds when they encountered the lizardmen, who put up a pretty good fight. Thanks to the cleric's healing they managed to defeat the leader which caused his guards to run away.
It was a fun run!