There are no better instruments than discharged servants with a grievance, and I was lucky enough to find one. I call it luck, but it would not have come my way had I not been looking out for it. As Baynes remarks, we all have our systems. It was my system which enabled me to find John Warner, late gardener of High Gable, sacked in a moment of temper by his imperious employer. He in turn had friends among the indoor servants, who unite in their fear and dislike of their master. So I had my key to the secrets of the establishment.
“Curious people, Watson! I don’t pretend to understand it all yet, but very curious people anyway. It’s a double-winged house, and the servants live on one side, the family on the other. There’s no link between the two save for Henderson’s own servant, who serves the family’s meals. Everything is carried to a certain door, which forms the one connection. Governess and children hardly go out at all, except into the garden. Henderson never by any chance walks alone. His dark secretary is like his shadow. The gossip among the servants is that their master is terribly afraid of something. ‘Sold his soul to the devil in exchange for money,’ says Warner, ‘and expects his creditor to come up and claim his own.’ Where they came from, or who they are, nobody has an idea. They are very violent. Twice Henderson has
