This is the third book in this genre mash-up series. Each book contains cops, criminals, psychopaths, vampires, demons, magic and the supernatural. The hero is a vigilante with a craving for human blood, a mastery of the occult and is a master swordsman.In the concluding book of the Falco, the Dark Angel trilogy: THE ROOF OF THE WORLD, Falco continues his mission against the worst of the worst in human society. Operating from his country lair in Alcona County and his two lairs in Detroit, Falco and his new-found companions wage war against murderers, thrill-killers, kidnappers, wife beaters and those who have escaped society's justice. Falco's justice is final and absolute. He continues to profit from his psychic business both financially and gustatorily. Lieutenant Kowalski continues to ask him to close cold cases and solve the unsolvable.Now no longer alone, Falco's three trusted and cherished companions help him in his mission to take out society's trash and protect the innocent. From what he learned during the quest and battle at the High Fortress, he sets his singular focus into smashing the heroin trade. After a meeting with the FBI, the DEA and the RCMP he gains valuable knowledge about the heroin business and the major players.The Dorigo gang, now run by Frank Morgan. has greatly increased its heroin orders from its primary supplier in Pakistan to attempt to sate the voracious appetite for the soul killing drug to their customers.Darkness has descended over the mob in six cities: New York, Cleveland, Cincinnati, St. Louis, Chicago and Detroit. Falco and his companions embark on a quest to confront and destroy the evil at its source. The new boss of Detroit, Frank Morgan once again employs his recent mastery of sorcery to conjure a fearsome demon to attack Falco and his team. His occult powers make him a force to be reckoned with. Falco's quest to destroy the scourge of the heroin trade leads him to Pakistan and Afghanistan where he and his companions discover a heroin processing plant and discover an even more disturbing plot than mere enslavement of the weak. A worthy adversary, who serves an ancient demon emerges. Their quest leads them to a mysterious cave high in the Western Himalayas where he will meet his greatest challenge yet: an unspeakable evil of the first magnitude. One that lures the innocent with great promise, yet ultimately reveals itself for what it is. There is a terrible conjuring that is only possible every 3,000 years and Falco is there to confront it. The future of humanity lies in the balance. Battles, swordplay, beheadings, explosions, magic, romance and more than a few surprises, this epic globetrotting tale will thrill you.