The sleepers in the tent don't stir at Grepha retrieving their weapons, and though you don't have enough rope of your own to tie up three people, the camp does have some lying around for other things. They're ill-prepared for being sprung upon in the night, and they're quickly bound and gagged before they can muster up any sort of response. Any chance of the dogs helping them is cut short by Caelyn's spell, and they seem more interested in getting pets or sleeping than their masters being tied up and threatened.

Loog, for his part, just sighs quietly. "Could've at leas' done 'em in their sleep, now they have to see it comin'."

Spoiler: OOC
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Turns out only one of you actually have rope on their character sheet, who knew? I did. Because I just checked while writing this post right now.