Ryan and Ify each rack up millions of jelly beans from the generous Professor and Mansa Musa.

It's off to the Philippines for the Professor to meet an impressive polymath who just wanted to write books but sparked a revolution.

The Professor travels back to Kievan Rus' to meet a vengeful female regent.

It's back to France to exorcise a possessed convent and tear down a wall.

Past guests, puppet and human, reunite to honor the late Professor, however they soon learn some dark news.