Tornado (sometimes also Toronado) is Zorro's black stallion and friend.
In Isabel Allende's novel Zorro, Tornado is given to Don Diego de la Vega upon his return to California, by his milk brother, Bernardo (manservant in the Disney television series), and Bernardo's wife, Light-in-the-night, who trained the horse. During Bernardo and Diego's Indian initiation ritual before leaving for Spain, Bernardo notices a black foal tentatively following him while he is alone in the woods. Gradually, he befriends the horse, and names him Tornado (pending the horse's approval). He plans to tame Tornado and give him to Diego, but when he wakes up after three days the horse is gone (only to show up again later). Instead of a gift, he[clarification needed] takes it as a sign that the horse is his spirit guide, and plans to "develop the horse's virtues: loyalty, strength, and endurance" Diego also train the horse to come when Diego whistled