The Passage of Time has been opened and the siege of Arkhangelsk has begun.
While Luise Hanover steams north with the Wallendorf war machine, Hari t.
Djinn, the fourth book in the Adventures of Hanover and Singh, pulls the different threads of the series together, throwing the Hanovers and their allies into close quarters with steam-powered machines, time demons, Cossack rebels and Djinn as they race to close the Passage of Time and free the city of Arkhangelsk.
The Passage of Time has been opened and the siege of Arkhangelsk has begun