The Wild Thornberrys Episode 12 - Blood Sisters Episode Title:Blood Sisters.Episode Description:The Thornberrys are driving in the Andes Mountains in Peru on the way to visit Dr. Spinoza, the world's foremost authority on vampire bats. This is a special trip for Marianne who was a student of Dr. Spinoza's twenty years ago. On the way Eliza starts reading about bats and her movie memories about vampires starts spooking her a bit. Dr. Spinoza lives in a remote, big castle and he is not at all like Marianne remembers. Everything about him gets Eliza's imagination going and Debbie sees it as a chance to have some fun at her sister's expense. Later, it turns out that the real Dr. Spinoza was tied up by a hunchback called, El Gordito who took Dr. Spinoza's place.