Last Christmas in Paris

#89 Last Christmas in Paris: A Novel of World War I by Hazel Gaynor and Heather Webb

When World War I broke out, politicians and governments declared that it would be over by Christmas. Evelyn (Evie) Elliot, her brother Will, their close friend Thomas (Tom) Harding, and Alice Cuthbert make plans to spend Christmas 1914 in Paris. At that point, Tom and Will, both Lieutenants on the Western Front, will be home. However, the war continues and four Christmases will pass before the Armistice is signed on November 11, 1918. As the war continues, a peaceful Christmas becomes evermore tantalizing and elusive.
...Years later, Tom Harding settles into his apartment in Paris at Christmas to read the packet of letters exchanged between himself, Evie, Will, Alice, and their families during WWI. One final letter, never read, remains from Evie. Perhaps this letter will allow Tom to lay to rest the ghosts of the past.

This epistolary novel was actually written as an exchange of emails between the authors. Hazel would write several of the letters from her home in Ireland and email them to Heather in New York. Heather would read Hazel's latest work, compose her own letters and send those onto to Hazel.

On Christmas day in 1914, troops from both sides  famously laid down their arms and joined together in No Man's Land to mark the holiday.

The movie Joyeux Noel is one fictional version of this truce

And I love this Celtic Thunder song about the truce of 1915