He has been too late several times, and when he sees he is too late he runs back to the Thrush’s Nest for his paddle, of which Maimie had told him the true use, and he digs a grave for the child and erects a little tombstone, and carves the poor thing’s initials on it
This is the second time that the book explicitly glosses over a seemingly violent death. This is a difference between children's books in the past and in the present. Present day authors are more likely to not address the concept at all or to address it very lightly and in a mystical and careful way.