The book follows the journey of a young woman, Benedict, who inherits money from her uncle, a deceased Japanese prisoner of war who was posted in Thailand.
Like the protagonist in the book, Walker used the money she inherited from her own POW uncle, Ernest Taylor, to discover what happened to him and also visit her brother who is a Buddhist monk in Thailand.
In similar vein, the opening line of Benedict's Brother reads: "Today, my great uncle left me one hundred and thirty-nine thousand pounds.
[7] In hindsight, Walker realised the journey to Thailand was her own way of coping with the death of a close childhood friend at the time.
She did not find out what eventually happened to her uncle, a prisoner of war held hostage on the River Kwai, in Thailand.
Seven years later (in 2006) while housesitting for her sister who was away on holiday, Tricia decided to post the first 10 pages of the book on her newly created Blogger account.
She decided to apply to the Arts Council England which gave her £5000 to launch the paperback of Benedict's Brother.
Benedict's Brother was a project being developed as a feature film in 2018 with Walker taking a key role as executive producer and script consultant.