Holden, a sleek terrier with butterscotch eyebrows, is a quiet intellectual who won’t say no to a brisk bum scratch and a kiss. He’s serious, and very polite, but also never stops wagging his tail and makes friends easily. Technically a senior, he’s also agile, youthful and big on exploring. He’s down for walkies and doesn’t mind the stairs. Did we mention charming? Very much so. In sum, he’s a sweet gent in good standing ready to fill a forever home with love and gentility.