- Script
- Joe Blair?
- Pencils
- Paul Reinman
- Inks
- Paul Reinman
- Colors
- ?
- Letters
- ?
- Characters
- Baronet Grove (villain, introduction, death); Roger Grove (introduction); Penelope Grove (introduction); Derek Wadsby (introduction); Dr. Fruke (introduction); Stark (introduction)
story bears some resemblance to Arthur Conan Doyle's "The Speckled Band"