Oscar Wilde and the dead man's smile : a mystery / Gyles Brandreth.

Enhanced descriptions from Syndetics:

One of the shining stars of historical crime fiction returns with this eagerly anticipated addition to the series that Booklist hails as "pitch-perfect" and the Toronto Globe and Mail calls "a lot of fun."

In Oscar Wilde and the Dead Man's Smile, the famous playwright and raconteur leaves England for a lecture tour in the United States, where he meets P.T. Barnum, sees Jumbo the Elephant, becomes involved in a saloon shoot out, and entertains Broadway's brightest stars. But soon Wilde becomes entangled with the LaGrange acting dynasty, whom he befriends aboard an ocean liner. Things are not what they seem with this family, and Oscar's shrewd curiosity may get the better of him as he investigates their hardships. Once the troupe arrives in Paris to perform Hamlet, the tragedies mount. As Oscar digs deeper into these seemingly random events, he will discover a horrifying secret...one which may bring him closer to his own last chapter than he could ever imagine. Gyles Brandreth has crafted another enchanting entertainment that is as intelligent as it is beguiling.