Prende's Chronometric Lantern

Prende's Chronometric Lantern, Prende's Lantern, or the Muse's Lantern is known from fairy tales as a "magical lantern" created by Van Rijn that could manipulate time.

However, Agatha finds a passage in the Van Rijn notebook that seems to show the lantern may be more than just a fairy tale and she begins to suspect that it is what Margarella Selnikov was looking for in the Corbettite crypts. Hoping he will be able to provide more information about the lantern or where it might be found, Agatha becomes even more determined to find Dio Zardilev.