The Fractal Prince is the second novel in Hannu Rajaniemi's Jean le Flambeur trilogy, following The Quantum Thief (2010) and preceding The Causal Angel (2014).
Jean le Flambeur, the post-human gentleman thief freed from his virtual prison in the first book, is travelling toward Earth with the warrior Mieli and her sentient ship, Perhonen, still trying to break open a Schrödinger box holding the secret of his own past — while shadowy pursuers close in and Mieli learns unsettling truths about his capture.
On the ruined, story-haunted Earth below, in the walled desert city of Sirr, the sisters Tawaddud and Dunyazad Gomelez are drawn into a murder investigation and their father Cassar's political maneuvering, as he seeks to use Tawaddud's connection to a "gogol" merchant to sway a Council vote on a treaty with the Sobornost. A third, more cryptic thread follows an isolated boy encountering strange visitors.
Structured deliberately like One Thousand and One Nights, the novel builds its story in layers within layers — a fractal shape that mirrors its themes of memory, minds-as-data, and the fluid, tellable nature of reality — as Jean's path converges with the sisters' toward the awakening of a Sobornost god.