Complex sentence: Shayer found none (although the plot bears a strong resemblance to a short story by Arthur Conan Doyle entitled' The Ring of Thoth) but he and writer Nina Wilox Putnam learned about Alessandro Cagliostro and wrote a nine-page treatment entitled "Cagliostro".
Split into simpler sentences: Shayer found none although the plot bears a strong resemblance to a short story by Arthur Conan Doyle entitled'The Ring of Thoth'. Shayer and writer Nina Wilox Putnam learned about Alessandro Cagliostro and wrote a nine-page treatment entitled "Cagliostro".