And Then She Came Back - The Detective Inspector Benedict Paige Series, #1

Will the killing never stop? An elderly widow is found dead in her London home, a white mouse placed inside her mouth.  It falls to Detective Inspector Benedict Paige to unmask this murderer with the cruel signature. He soon finds himself drawn back to 1982 and the notorious case of the serial killer dubbed 'The White Mouse Killer'. But he was eventually caught and died behind bars.  Surely, this is a case of a copycat murderer.  But as Benedict uncovers a series of shocking truths, he realises the original investigation was deeply flawed. The real White Mouse Killer was never caught and, forty years on, he's killing again.
DI Paige needs to catch him - before he claims his next victim.