In Scotland 1874, Jack is born on the coldest day ever. Because of the extreme cold, his heart stops beating. The responsible midwife in Edinburgh finds a way to save him by replacing his heart with a clock. So he lives and remains under the midwife’s protective care. But he must not get angry or excited because that endangers his life by causing his clock to stop working. Worse than that, when he grows up, he has to face the fact he cannot fall in love because that too could stop his delicate heart.

Two clans of snakes cohabit in the desert. Beautiful green serpents that live under the shelter of an oasis, protected and venerated by men and poisonous snakes that survive in the sand, dust and heat, hunted and killed by the Tuaregs. Here is the story of Ajar, a young poisonous serpent, laughed at by his peers because he still has not done his first moult and that of Eva, rebellious princess of the oasis who wants to escape to escape an arranged marriage. These two will meet and fall in love. Alas, Eva will be kidnapped by the Tuaregs and Ajar, accompanied by her best friend, Pitt the Scorpion, will have to cross the ruthless Sahara to save Eva from the terrible fate awaiting her.