The Death In The Willows

Description for THE DEATH IN THE WILLOWS by Richard Forrest:

The bus Lyon Wentworth, noted children's author, was travelling on was hijacked, and when it becomes clear that someone wants Lyon dead, he begins a search fro the true assasin, with the help of his friend Police Chief Rocco Herbert and Lyon's wife Bea, Secretary of the State of Connecticut, who is in the middle of the most important political race of her career.

This is #4 in a Lyon and Bea Wentworth Mystery.