Amongst Ludo's people, there's a special breed of horse chosen to draw the chariot of the sun. Ludo's horse is getting old, and one day, it breaks out of its barn. Ludo follows his horse and stays by his side through adventures and perils as they encounter personifications of the 12 Zodiac signs on the way to a meeting with Destiny.
One night when Ludo is home alone, his family's only horse, Renti, escapes from the stable. Overcome with guilt and fear, Ludo follows Renti out in to the snow, and before long the pair find themselves in the House of the Archer, a gateway to the Zodiac. Here, the Archer tells Ludo that Renti is a Star Horse, and has chosen to return to his own kind. Ludo, says the Archer, may keep faith with Renti and accompany him, or, if he prefers, return home.
Ludo decides that he must repay Renti's years of loyal service, and so the pair set off on a journey through the houses of the zodiac, or 'Star Countries'. They must pass through all twelve before catching the sun - but Ludo soon realises that many of the house rulers are less than hospitable. Dismissed by the imperious goat, chased by the crab, taunted by the bloodthirsty twins ...theirs is a perilous and unpredictable journey.
