""Mary, Queen of Scots and Who Wrote the Casket Letters V2"" is a historical non-fiction book written by Samuel Cowan. The book explores the life of Mary, Queen of Scots, and the controversy surrounding the authenticity of the Casket Letters. These letters were allegedly written by Mary to her third husband, James Hepburn, Earl of Bothwell, while she was imprisoned in England. The letters were used as evidence against Mary in her trial for treason...