Darwin's Diaries #1-3

Charles Darwin is known as the Father of Evolution. But his hidden diaries reveal that he studied other, less natural things as well...
Victorian England. In Yorkshire, several men and horses working on a railway line have been killed - slaughtered, really. The police suspect some kind of wild beast. The government calls upon controversial naturalist Charles Darwin to help with the investigation. A reasonable move, but one that is dictated rather by the least known part of his work: research on what other people would qualify as legendary creatures. It won't be long before the scientist discovers that he may be right about them after all...