Ok the party begins to slowly make their way through the bog. It is deep water up to most of your hips. Those of you who swim, can do so and massively increase your speed. Those of you who can't are limited to 1/4 base land speed.
As the party makes its way slowly across the swamp, thousands of beetles striding across the water at our intrepid heroes, two swarms, going to Siobhan and Stulgar. Biting at them, as they swim.
"Lily, could you take care of those with your fire? I've never been sure why, but Druids cannot make any connection with insects, so you are the only one who can harm them."
(OOC: Lily is the only one in the party who can attack a swarm and Inertial Armour can't help--they don't make any attack rolls)