Each month ex-cop Nicky Alan teams up with her spirit guides to investigate an unsolved mystery. Here, she delves into what really happened when Queen of Crime Agatha Christie went missing for 11 days

Beneath the brightly wrapped gifts lay a grim and heartbreaking discovery

This week’s crime story...

The only clue to find a killer was some footprints in the snow

She fought to save her son but paid a terrible price

Oh, the joy of curling up on a winter’s afternoon to immerse oneself in a compelling crime novel or TV drama featuring victims and sleuths. The story will be set in a picturesque, seemingly safe place