MURDER AT THE ROYAL BOTANIC GARDENS

The fast-approaching nuptials of a couple with many secrets are threatened with delay by yet another murder in Penrose's latest Regency mystery.

Although Lady Charlotte Sloane’s relationship with the Earl of Wrexford has been fraught with problems, they’re finally preparing to marry when a well-known scientist dies at the Royal Botanic Gardens in Kew. Wrexford is called to the scene by Dr. Hosack, an American friend of the deceased who suspects that it was poison and not a weak heart that killed Mr. Becton, who was about to announce a great advance in anti-malarial medicines. One of Charlotte’s wards witnessed the killer’s departure, but his inability to identify him leaves the witness in possible danger. After the sleuthing pair discover that one of their most vicious enemies may be involved, they decide to investigate despite the bad timing. Becton had planned to offer his cure for free, but others are eager to steal the formula and sample in order to turn a profit. Luckily, many friends who have helped the couple in past cases are willing to pitch in again to investigate a complicated puzzle that features more than one group of villains. The fact that Great Britain and the United States are on the brink of war drags politics into the mix as well.

A bit of Regency-period romance and history enhance a convoluted mystery with plenty of derring-do.