Well, Mabel wasn't my Grandma, (above) although like Grandma she was cheerful and joyful, and worked as a nurse in France in the First World War - just like Grandma did.
Grandma came from Seaton Delaval, near Newcastle-upon-Tyne, in the North of England. Our Mabel was a Londoner, though. She came from Bermondsey, the same place as Boutcher School, and we have her living in a little house that once stood opposite Boutcher school.
I did wonder if Grandma's knife had a little secret to it, and so Mabel needed a secret too. Mabel's secret was that she took some very unusual little friends with her to France. They were her performing fleas.
And so we embarked on the story about how we harnessed the creative energies of the kids from Boutcher School to create a story with a secret, inspired by that feisty young girl who was my grandma, long ago.