We've reached the era of the Third Doctor, and for the first time ever on The Power of 3, we're looking at a Missing Adventure featuring Jon Pertwee's Time Lord.Today, we take a trip to the Middle East with the Doctor, Jo, the Brigadier, Mike Yates and Sergeant Benton.Author Paul Leonard joins us for a chat, as Dave enthuses over the book's meme - which he remembers almost 30 years later!