James and other young Shadowhunters still faithfully patrolled the streets of London, seeking out demons that might harm the mundane population, but in the last few years demon appearances had been few and far between. It was a good thing—of course it was a good thing—but still. It was decidedly odd. Demon activity was still normal as far as the rest of the world was concerned, so what made London special?

There were plenty of mundanes out and about on the streets of the city, though the hour was late. None glanced at the bedraggled group of Shadowhunters as they made their way down Fleet Street; their glamour runes made them invisible to all eyes not gifted with the Sight.

It was always strange to be surrounded by a humanity that did not see you, James thought. Fleet Street was home to the newspaper offices and law courts of London, and everywhere were brightly lit pubs, with print workers and barristers and law clerks, who kept late hours, drinking into the dawn light. The Strand nearby had spilled the contents of its music halls and theaters, and well-dressed groups of young people, laughing and boisterous, chased the last omnibuses of the night.

The bobbies were out working their beats too, and those denizens of London unfortunate enough to have no homes to go to crouched muttering around cellar vents that sent up drifts of warm air—even in August the nights could be damp and chilly. As they passed a group of such huddled figures, one looked up, and James caught a glimpse of the pale skin and glittering eyes of a vampire.

He looked away. Downworlders weren’t his business unless they were breaking Clave Law. And he was tired, despite his energy Marks: it always drained him to be dragged into that other world of gray light and black ragged shadows. It was something that had been happening to him for years: a remnant, he knew, of his mother’s warlock blood.

Warlocks were the offspring of humans and demons: capable of using magic but not of bearing runes or using adamas, the clear crystalline metal from which steles and seraph blades were carved. They were one of the four branches of Downworlders, along with vampires, werewolves, and the fey. James’s mother, Tessa Herondale, was such a warlock, but her mother had been not just human but a Shadowhunter. Tessa herself had once possessed the power to shape-shift and take on the appearance of anyone, living or dead: a power no other warlock had. She was unusual in one other way as well: warlocks could not have children. Tessa was an exception. Everyone had wondered what this would mean for James and his sister, Lucie, the first-ever known grandchildren of a demon and a human being.