Chava, a golem brought to life by a disgraced rabbi, and Ahmad, a jinni made of fire, form an unlikely friendship on the streets of New York until a fateful choice changes everything.

In Berlin, at the time when the world changed, Hanni Kohn knows she must send her twelve-year-old daughter away to save her from the Nazi regime. She finds her way to a renowned rabbi, but it's his daughter, Ettie, who offers hope of salvation when she creates a mystical Jewish creature, a rare and unusual golem, who is sworn to protect Lea. Once Ava is brought to life, she and Lea and Ettie become eternally entwined, their paths fated to cross, their...

Chava is a golem, able to hear the thoughts and longings of the people around her and compelled by her nature to help them. Ahmad is a jinni, a free-spirited creature of fire, imprisoned in the shape of a man. Pretending to be human, they are just two more immigrants in the bustling world of 1900s Manhattan. Park Avenue heiress Sophia Winston, whose brief encounter with Ahmad left her with a strange illness that makes her shiver with cold, travels...

In their continuing adventures, magician's apprentice Nathaniel, now fourteen years old, and the djinni Bartimaeus travel to Prague to locate the source of a golem's power before it destroys London.