The Secret Adversary is a novel about two young people, Tommy and Tuppence, working to solve a mystery involving a sinister criminal organization and a missing treaty. They must use their wits and courage to outwit the villains and save the day.

In The Dueling Machine, a group of scientists create a virtual reality chamber where individuals can engage in duels without any physical harm. As they test the machine, they discover a glitch that causes the duels to become real and must find a way to fix it before it's too late.

The Delafield Affair is a suspenseful mystery novel about a wealthy and powerful family torn apart by secrets and betrayal. When the patriarch is found dead, his wife's sanity comes into question and his children must navigate a dangerous web of lies to uncover the truth.