[1] Caroline Todd died in August 2021, at age 86 from complications of a lung infection.
The books deal with the cases of Inspector Ian Rutledge, a veteran of the European campaigns who is attempting to pick up the pieces of his Scotland Yard career.
However, he must keep his greatest burden a secret: suffering from shell shock, he lives with the constant, cynical, taunting voice of Hamish MacLeod, a young Scots soldier he was forced to execute on the battlefield for refusing an order and moments before a shell from their own artillery buried Rutledge's regiment alive.
Only Rutledge survived because of a small air pocket between his face and Hamish MacLeod's body.
[2] They are also the authors of a series about Bess Crawford, a nurse serving in France during World War I.