The tale of a forgotten crusade, erased from history because it fell into the shadow of the devil. Jerusalem is in the hands of Sultan Ab’dul Razim, and the Christians have raised an army to take it back, led by Grégoire of Arcos and the Duke of Taranto. Only Gauthier of Flanders and his sister-in-law Syria of Arcos are opposed to an attack they deem premature. But the stench of brimstone covers everything, and in a war fought in the name of God, it is the Qua’dj, a demon, who could decide...

USA, 1970. Joe is driving his camper in the wide open spaces of the Wild West. He makes several acquaintances along the way: a small coyote, to start with, but also local thugs, F.B.I. agents, a U.S. Marshal, old friends who seem to be more or less trustworthy... But who is this good ol' Joe? Those who cross his path tend to see their life expectancy dangerously decrease...

He used to play a dangerous game, running cash for the mob. Now he calls himself Tango, and he lives in a little village rising like a small island out of the rocky sea of the Andes. He's made a few friends since he arrived, with whom he's got a lot in common: they've all got secrets from their past, and they're not exactly who they say they are. One by one, their secrets are revealed in a storm of violence when old friends come knocking, demanding past debts be paid. High up in the Bolivi...

Gauthier is in Acre, awaiting the arrival of Sybille, his sister – a woman with a scandalous reputation he hasn’t seen in many years. Meanwhile, the Assassins, working for the Djinn Ottar Benk, are still after him, convinced that he is in possession of the dangerous ‘treasure’ that Benk covets. To force the knight to show himself, they begin to foment trouble in the city, held by the Christians.

Gauthier and Osarias have reached Jebel Tarr, the city of the Flagellants, where the Breath of the Qa’dj now resides. They want to extinguish it forever, but can such a demon ever be destroyed? Meanwhile, the machinations of Guy of Lusignan, his thirst for power and blood, have brought the Cross and the Crescent to the brink of renewed war, one that only Syria of Arcos, torn between her feelings for the Sultan and Gauthier, can still prevent – maybe …

In spite of himself, Gauthier has returned to Hierus Halem, both to accompany his sister Sybil, who is seeking the ugliest man on Earth, but also to continue the fight against the Qa’dj, whose breath is once again plaguing the land. Unfortunately, the man Sybil is after is Guy of Lusignan, a brutal, fanatical lord whose actions are rekindling the conflict between Christians and Muslims. Caught once again in a world of violence, Gauthier will owe his survival to an old friend …

With the Master of Machines as their new leader, the Crusaders are ready to assault Jerusalem once more. The Sultan must now choose between his love for a Christian princess and his faith. And Gauthier of Flanders, to free his ally Osarias’s Jewish people, will have to confront the last part of his mysterious past, a Jinni. As the final battle is joined, truths will be revealed on the nature of gods and demons and the ambitions of men.

The crusade is over, and relative peace has returned to the Holy Land, yet the magic and afflictions that permeate it haven’t gone away. When Gauthier of Flanders, now a wandering knight, stops in a caravanserai and gives water to a Christian woman prisoner of the Order of Assassins, he has no idea what evil is about to be unleashed upon the world … nor that he will once again have to stand against a deadly demon.

When his past caught up with him in South America, Tango took care of the situation and made a new friend along the way, Mario. The two men leave the desert behind for the open sea, but when Mario grows bored sailing around the Caribbean, they stop on the tiny island where Tango's grandfather lives. What should have been a nice family visit, however, quickly turns into a violent confrontation. Trouble has a way of finding him (or is it the other way around?), but Tango's got a knack for ge...

The Crusader army has been destroyed by the terrible Simoun Dja, the desert wind. Gauthier of Flanders has gone to look for the Jews of Samaria, possible allies to retake Jerusalem. But the Holy Land is rife with plots and counterplots. Christians and Muslims alike are torn by internal conflicts. And behind it all, pulling strings and offering temptations, one creature: the qa’dj—the demon that crept at the foot of the Cross.

For our two fugitives turned sailors, Tango and Mario, the next stop on their voyage around the West Indies is beautiful Curaçao. There they'll meet Charles, a charming Frenchman who's clearly hiding something. The three go on together to Panama City, and it's not long before Charles catches the attention of the American authorities. And they're not the only ones who want to get their hands on this expat on the run... Bullets will fly, with Tango once more caught in the middle.

With the Master of Machines as their new leader, the Crusaders are ready to assault Jerusalem once more. The Sultan must now choose between his love for a Christian princess and his faith. And Gauthier of Flanders, to free his ally Osarias’s Jewish people, will have to confront the last part of his mysterious past, a Jinni. As the final battle is joined, truths will be revealed on the nature of gods and demons and the ambitions of men.