The Savage Tide
The adventurers have never experienced a Savage Tide, but have witness the results of one when they visited Karken Cove and recovered The Sea Wyvern during the events of The Bullywug Gambit there they saw hideously deformed creatures of all shape and size transformed by the chaos energy released from a huge black pearl that Vanthus Vanderboren accidentally shattered.
Jhan Nagaarian a Truedive Shifter recovered the remains of the pearl from the bottom of the cove. He was later killed by a tiger shark made savage by the wave from the pearl.
an artists impression of an intact pearl
The cargo manifest of The Sea Wyvern indicated the pearl was destined for Sasserine.