As soon as they hit the water, Lambert's only disoriented for a split second. Instinct kicks in after that, and sodden clothing is nothing on swimming in an ice cold lake with witcher armor on in the winter. The daemon knows this, too, which is why although everyone gets dumped in the drink and Siobhan goes to rescue her other half, she catches herself before she hits the water, hovering over the churning surface.

Lambert pops up to the surface like a cork, hair plastered wetly all over the place and stuck to his horns in odd whorls, and starts treading water. His expression's still more confused than put out, even with the relative inconvenience of being dumped in water so ungracefully, but...

"I can't feel the cold." This is directed at his daemon, with a touch of disbelief, before it occurs to him to glance over at Strange and Siobhan, expression shifting from perplexment to amusement. "You look like a drowned rat."