Mitchell is famous for his intertextual tricks, and plenty dot these pages. There are passing references to Zedelghem, the Belgian estate that features in one of Cloud Atlas’s interlocked stories, and an appearance by the sister of Jonny Penhaligon, an aristocratic student gambler who commits suicide in The Bone Clocks. And Marinus, a hero of The Bone Clocks who first appeared in Mitchell’s The Thousand Autumns of Jacob de Zoet, makes a triumphant, shape-shifting return.