It started with two old photos for sale at auction: Royal Navy sailors carrying a buoy on a wharf on the St. Lawrence. Historian David Saint-Pierre knew that the only time this happened was when the crew of HMS Essex helped with the salvage operations following the sinking of the Empress of Ireland, on 29 May 1914, the worst peacetime maritime disaster in Canadian history, that saw the deaths of over 1,000 people. This led to the discovery of a whole album containing more than 500 photographs, including many showing how the aftermath of the disaster unfolded, and a complex and stressful process ensued to deliver the album safely to him after he arranged to purchase it in its entirety, having realized it's great importance. Thanks to these newly discovered photos, showing diving and salvage on the wreck in the summer of 1914, this book is an original contribution on a largely forgotten page of maritime history.