The new novel in the best-selling, critically acclaimed Hull-based DS McAvoy crime series.
It's the coldest winter in Hull for years.
When McAvoy is told by a concerned stranger that an elderly woman hasn't been seen for a few days, he goes to check on her - only to find her in the bath, encased in ice: the heating off, the windows open, the whole house frozen over.
It could be a macabre accident, but when McAvoy finds a series of cryptic messages, he senses murder. Someone watched her die.
As he starts to uncover the victim's story and her connections to a lost fishing trawler, his boss Trish is half a world away, investigating a mysterious death in Iceland. Hull and Iceland have traditionally been united by fishing - in this case, they are linked by a secret concealed for half a century and a series of brutal killings that have never been connected.
Until now - when the secrets of the dead have returned to prey on the living.