Witchers aren't used to getting backup, so when Lambert realizes he actually isn't alone in this fight, it catches him off guard just as much as Sans. He remembers, vaguely, a conversation in the ballroom connected to that, some promise of 'help.' It's just a surprise it's actually came through. Life usually disappoints him.

The interruption gives him a much-needed moment to breathe and collect his thoughts, pushing past the pain and the stiffness in his limbs. He steps toward Sans, with the full intention of wresting the sword from his hand and tossing it away while he's held down.

Except someone else beats him to the punch -- and twists his own sword out of his fingers in the process. He looks up, half-expecting to see the Prince himself hovering at the doorway -- that would be the best outcome in some ways, the worst in others -- but when he realizes it's just Peridot, he frowns.

"Get out of here!" he snaps. The words aren't just for her benefit, but for anyone else with no intention of going toe to toe with the Warden, too. Lambert knows what a trapped animal looks like when he sees one, and unless those vines also happen to be magic-canceling? He knows Sans isn't as helpless as he looks right now.