The Sign of Four
- Episode aired Nov 20, 1999
- TV-Y7
- 22m
20 years after her father died during a moon-quake, Mary Morstan is summoned to the moon by the son of her father's business partner. Holmes and Watson are invited along for the ride.20 years after her father died during a moon-quake, Mary Morstan is summoned to the moon by the son of her father's business partner. Holmes and Watson are invited along for the ride.20 years after her father died during a moon-quake, Mary Morstan is summoned to the moon by the son of her father's business partner. Holmes and Watson are invited along for the ride.