An international and Amazon #1 best-selling author, Helen is a former criminal and family law barrister. Every book in the Callanach series has claimed an Amazon #1 bestseller flag. The last book in the series, Perfect Kill was longlisted for the Crime Writers Association Ian Fleming Steel Dagger in 2020, and others have been longlisted for the McIlvanney Prize, Scottish crime novel of the year. Helen also writes as HS Chandler and has released legal thriller Degrees of Guilt. Her audio book Perfect Crime knocked Michelle Obama off the #1 spot. In 2020 Perfect Remains was shortlisted for the Bronze Bat, Dutch debut crime novel of the year.
Now translated into 16 languages, and also selling in the USA, Canada & Australasia, Helen's books have won global recognition. Her historical thriller These Lost & Broken Things came out in May 2020. Her first standalone thriller, The Shadow Man, was published in 2021.