Answer: Dr. Seward had observed that the Renfield is a lucid.
Explanation:
Renfield used to collect flies and spiders. Steward had appointed a guard outside Renfield's cell to observe and regulate the aberrant behavior.
One night when Renfield screamed from his cell, Seward observed that he was badly hurt. His face was brutally beaten. He realized that Renfield cannot himself inflict wounds on his face, as his back was broken.
