A set of gamebooks published by Tor. This includes books under the subheadings of: Blackstone's Magic Adventure, Blackstone's Magical Adventure, Your AMAZING Adventures and Zork.
The two Blackstone series center around the magician Harry Blackstone and feature such content as instructions on how to perform magic tricks. The Amazing Adventures series has the reader completing mazes. The Zork series sends the reader as two children Bill and June to the land of Zork.