«The Maze In the English Park: A Historical Crime Novella» by Elizabeth von Witanovski

The Maze in the English Park, a historical crime novella, spans two centuries, and ties two worlds of people who will be unknowingly brought together in an unexpected drama of lost identities, love, and death.
It is in 19th century Prague where the path of an ambitious actor and a Viennese aristocrat cross. Karel is the rising star of the Prague National Theatre. Josef is the undisputed heir to his assassinated father's political legacy. Both young men find themselves dangerously enchanted by the power of anarchism. When the accidental death of a young noblewoman is interpreted as a politically-motivated murder, evidence of Karel's and Josef's proximity to the scene of the crime forces them to run for their lives. Their escape sparks a tumult of deceit, lost love, and murder, crucially altering the lives of innocent people on both sides of the Atlantic. New identities are assumed, and nothing will stand in the way of keeping them.
The drama culminates in 1950s England, when a well-known photographer, Adam, finds an undeveloped roll of film in his lover's antique store in London. The story of an undocumented murder begins to take shape in his darkroom. Overcome with curiosity, and unaware of the danger he is in, Adam accepts a stranger's invitation to tea at an old manor in the middle of an English park. There, a set of crucial discoveries will change Adam's life forever.