A child with a British accent emerges through the radio static, and eventually leads Martin back to the streets of London in 1940. Jimmy Harker is a boy in desperate need of help, but the help he needs will require more heart and courage from Martin than he ever knew he had.
So you want me to make a sentence that has which, Who and where in it?
B. But only so an hour
the word only indicates that "an hour" is considered a short time period for the flower, and so it represents "the youth" of it being a flower before it becomes like the rest