If you like World War history, you will love this book. Set in London; while solving an interesting double murder, the characters lead the reader through the factual maze of what led up to World War I. Politics, world positioning, greed and power were the ingredients of this witch’s brew long before Hitler came along. A tiny country, Austria, was the linchpin and match strike that started the ‘war to end all wars’. How’d that work out for all of us? Author, Anne Perry tells a good story. Her dialogue is sharp and sometimes witty.