A mother's murder. A daughter's quest for truth. A killer ready to strike again.

When Daryl Brackstone approaches private investigators Sebastian Clifford and Lucinda 'Birdie' Bird about her mother's decades-old murder, she's hoping to finally uncover the truth. Her father died in prison for the crime, but Daryl has never believed in his guilt. As Seb and Birdie dig deeper, they discover Helen Brackstone wasn't just a suburban housewife - she was part of a secretive activist group investigating high-level corruption.

When threatening messages and intimidation tactics start targeting the investigators, it becomes clear that powerful people want the past to stay buried. What secrets did Helen uncover that made her a target?

The clock is ticking for Seb and Birdie to expose the real killer before they become the next victims.

Step into a deadly world of buried secrets and fatal consequences in Question of Guilt, the latest instalment in the completely gripping Detective Sebastian Clifford series.