A note from Ezmerelda to Van Richten is found on the 4th floor of Van Richten's Tower. The note holds clues for the characters, it reveals her uncertainty about Van Richten's whereabouts. A detailed sketch accompanies the message, providing valuable information about Strahd and his allies. It becomes evident that the Wizard's Tower serves as a strategic base for both Van Richten and Ezmerelda in the pursuit of their mission. Location: 4th floor of the Wizard's Tower.