'FROM THE SECRET FILES OF MYSCROFT HOLMES': Mycroft reveals three bizarre tales; BLACKMOORE OF THE BONEYARD AND LILITH'S pursuit of a hellspawn; Journalist HORACE HARKER's investigation into blood-drained victims; and Mycroft's own encounter with the most diabolic super-villain of Victorian literature: DOCTOR ANTONIO NIKOLA. Plus; Extra material: Christopher Sequeira writes an essay on how Holmes is like that famous DC Comics superhero-no, NOT Batman--Lois' friend! Seriously!