Kunai

Kunai is a Nezumi affiliated with the Nezumi-Zokuh ("zoh-koo") of the Shadowfel. At some point in the past, The Rahjs freed his people from Alyssa, and he remains eternally grateful.
Kunai met the party when Lord Kinekoro used him as a courier to exchange a bag of precious jade for an Ytarran artefact Draven had recovered from Polaron.
He has some skill in matters of stealth, but is nowhere near Angel's league, as demonstrated when she effortlessly tailed him, despite his presumably watching for pursuit.