Nights of Villjamur

A dark epic, Nights of Villjamur is the first book in Mark Charan Newton's Legends of the Red Sun fantasy series. An ice age strikes a chain of islands, and thousands come to seek sanctuary at the gates of Villjamur. It's a city of ancient spires and bridges, a place where banshees wail and cultists use forgotten technology. And beyond the now besieged walls, the dead have been seen walking across the tundra.
When the Emperor commits suicide, his heir, Rika, is brought home to lead the Jamur Empire. But the corrupt Chancellor has his own designs on the throne. Meanwhile, a senior investigator in the city inquisition must solve the savage murder of a city politician, and a charming rogue manipulates his way into the imperial residence with a hidden agenda. Then one crime leads to another and a plot is uncovered that could mean genocide for thousands of citizens.
It seems that, in this land under a red sun, the long winter is bringing more than just snow .