'What is your profession, Mr Holmes?' When Nell Villiers' policeman husband vanishes on a routine case, her life is wrecked. Placed under protection by Inspector Lestrade, Nell is ripped from her old life and her own secret police work. Instead she must live as a widow, Mrs Hudson, in a safe house: 221B Baker Street. Two years on, with the case still unsolved, Nell vows to defy Lestrade and use her skills to discover what happened. She takes a lodger to cover her tracks; a young man called Sherlock Holmes. Before long, he is working on her case - and Nell is assisting him. But as Nell delves into her past she raises ghosts whom one person would rather keep buried. Will she face danger, and risk her new life in the process? 'It's always been fun before - but now the police are the enemy...’ A House of Mirrors is the first book in the Mrs Hudson & Sherlock Holmes series, which documents life at 221B Baker Street from Nell Hudson’s point of view.

What happens when the honeymoon ends? Life in Baker Street is not all Nell Hudson thought it would be. Financially the household is struggling, and in the masculine world of police work, Nell finds herself pushed aside in favour of Dr Watson. She takes a job as a department store detective to make ends meet; but though she is successful, none of the men in her life take it seriously. Sherlock himself is busy investigating a missing prisoner; but when Emmett Stanley is found it turns out to be a case not of escape, but abduction. And he is in no state to tell anyone what happened. Then trouble strikes closer to home. Military secrets are being leaked, and Mycroft Holmes is under suspicion. When Sherlock tries to help, a rift opens between the brothers, and its consequences threaten Nell and Sherlock’s relationship. In the midst of it all, an opportunity beckons for Nell. She is approached to go undercover as a spy; but to do so she must leave everything behind and live a life completely alien to her. Will Nell dare to step out of Sherlock Holmes’s shadow? In Sherlock’s Shadow is the second book in the Mrs Hudson & Sherlock Holmes series, which documents life at 221B Baker Street from Nell Hudson’s point of view.

Why won’t the past stay buried? When Nell Hudson is offered an opportunity to work alongside Sherlock Holmes, she turns it down. She has forged her own independent career, and is happy with things as they are. But she has no choice when an anonymous bomber plants dynamite all over London and sends only Sherlock the clues to find it. Soon, Nell’s and Sherlock’s lives are consumed as they race to defuse the devices and discover the villain. A face from Nell’s past reappears, seeking to wreck the new life she has worked so hard to build. But they are not the only one taking an unwelcome interest in her. Someone else has tracked Nell down to Baker Street, and if they pay her a call, it will be fatal. Can Nell take back control of her life and help Sherlock stop the bomber before tragedy strikes? A Spider’s Web is the third book in the Mrs Hudson & Sherlock Holmes series, which documents life at 221B Baker Street from Nell Hudson’s point of view.