Serena's affair with Tony is painfully over, but she is determined to salvage a career with MI5. Read by Amelia Bullmore. Show more

Still reeling from the news of Tony's death, Serena finds an alarming piece of evidence while operating undercover as a cleaner. Read by Amelia Bullmore. Show more

Serena is given her first real mission for the service, but just as she is promoted, her friend Shirley is sacked and tells her she is being watched. Read by Amelia Bullmore. Show more

Serena's affair with Max is not progressing, but a new love interest emerges as her first mission for MI5 involves an attractive young writer. Read by Amelia Bullmore. Show more

Serena and Tom Healy become lovers. Is it too late to be honest? Love and deception in MI5 during the early 1970s. Read by Amelia Bullmore. Show more

Christmas 1973 is a challenging one for Serena. An angry and emotional Max turns up on her doorstep, then she has to accompany Tom and his terrible dystopian novel to the publisher. Show more

Tom's dystopian novel has won a prestigious prize and started to threaten Serena's standing in MI5. Love and deception during the early 1970s. Read by Amelia Bullmore. Show more

The truth emerges about Sweet Tooth, but the story doesn't end there. Love and deception set in MI5 during the early 1970s, read by Amelia Bullmore and Andrew Scott. Show more

Just as their relationship starts to deepen, Serena starts to worry that she is losing Tom to somebody else. Love and deception in MI5 during the 1970s. Read by Amelia Bullmore. Show more

An affair starts Serena on an unintended career path. 1970s tale of love and deception set in MI5. Read by Amelia Bullmore. Show more