When Arlo Banks solves a difficult puzzle in The Times, devised by an elderly Oxford professor, he wins a vast fortune. There's just one catch: he has to travel the world and write to the professor about his adventures. But enemies and killers lurk at every turn. From the Orient Express to the Nile River to British spy headquarters, join Arlo as he fights to find answers--and fights for his life!

As Arlo Banks, you choose what path to take and what puzzles to answer to solve each mystery. On the trail of a ruthless mafia godfather determined to evade capture...on a pleasure cruise where a passenger's death has a killing effect on the others on board...behind the scenes at British intelligence, where a dangerous traitor is stealing government secrets.

From breaking codes to defusing bombs, navigating mazes to sifting through evidence, Puzzle Sleuth is an addictive brain-teasing mix of story, game, and adventure. Just remember to choose wisely. Your next move could catch the killer--or be your last!