After putting on a refight of the Battle of Mont Cassel last year I got somewhat carried away with enthusiasm to find out more about it, especially as there were several gaps or contradictions in the evidence I accumulated for my refight. So I have spent some time gathering as much information as I could about it and writing it up. I attach below the fruits of my labours for anyone to access. It is a PDF document, 82 pages, including maps and appendices. I hope it is of interest and welcome any feedback, good or bad, as well as new information or corrections.