This, the mouse from earlier, is Beeta. She's from Underville, and she spends her life sneaking around places taking notes on anything that might be interesting for other explorers to look into in detail. She's quick and agile and knows lots of ways of getting into and out of things. Beeta hates to feel alone, but even when her missions take her far from home, the notes she takes let her feel the companionship of everyone who follows in her hexapedal pawprints.