In the distance, you can see the slim silhouette of the tower. Even at this distance, you can understand why it filled the elder thing with such terror.
When this card enters play, place the Adventure token on Plateau of Leng.
When this Adventure is completed, advance the active Mystery by 1.
After an investigator resolves a location encounter on Plateau of Leng, he may spend 1 Clue to examine the black tower he finds there.