About Fireball Island: The Curse of Vul-Kar – Spider Springs, from BoardGameGeek:
Fireball Island just got a whole lot bigger. There's just one problem: It's covered with spiders, and they have a nasty habit of "popping up" all over the place. Use the caves to get to the peninsula. Navigate the chasm to scoop up valuable spider eggs. Stop for a snapshot on the scenic bridge. But watch out! When Vul-Kar starts rumbling, the spiders start jumping!
This expansion adds a new location to explore, a new kind of treasure to collect and a new hazard: spiders! Spiders are worth negative points at the end of the game. In the center of the chasm is a spring-loaded "spider launcher". Marbles can trigger the launcher, sending spiders around the chasm or into a crevasse, where they can make their way onto the main island. You'll even send spiders through Vul-Kar with the new Arachnoclysm action card. It even offers a new way to get off the island via a secret submarine.
-description from the publisher
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