Grijalva is the sort of Terrier who is wired from eyebrows to paws, fixing trouble by causing slightly less trouble. On slow afternoons Grijalva labels every cracked tile with a different theory and lets the breeze make most of the decisions. The Yard has a small unspoken rule about teasing Grijalva near the Endless Track, mostly because nobody wants to lose. Grijalva believes ordinary days are where big mysteries hide, usually under a bowl or behind a door nobody checked.