Together, Holmes and Watson find the corpse of the convict Selden, wearing Sir Henry's clothes, slaughtered by an unknown beast. The clothing exposes the Barrymores, who confess to have helped the escapee, who was their relative, by supplying food and other provisions each time he signaled with a light from his hideout. However, Holmes has evidence relating to the poisonous spider and the missing portrait of Sir Hugo, that convinces him that neither the Barrymores nor Selden are connected to the death of Sir Charles.