| Items Required: | German Lock Chinese Ball Japanese Casket Dutch Chain Celtic Puzzle | 
| How to Obtain: | Drops from: Guest Eagle Guest Raven | 
| Other Sources: | Drops from all Adventure Buildings Small Collections Chest Collections Chest Guest Collections Chest | 
| Gold Coins:  | 1 600 | 
| Experience:  | 600 | 
| Rewarded Items: | Voynich Manuscript House of Doubts (collection x6) | 
| Mission Name | Mission Details | Reward | Host | 
| 1) Marriage of Convenience | Visit the Coffee Bar to talk with Jane | 305 | Stewardess Jane | 
| 2) Riddles for Adults | Find a German Lock by landing guest Raven planes | 300 | Passenger Jim Parker | 
| 3) A Chinese Torture | Find a Chinese Ball by landing guest Raven planes | 304 | Passenger Jim Parker | 
| 4) Asian Secrets | Find a Japanese Casket by landing guest Raven planes | 275 | Passenger Jim Parker | 
| 5) A Chain of Mysteries | Find a Dutch Chain by landing guest Raven planes | 301 | Passenger Jim Parker | 
| 6) Strong Ties | Find a Celtic Puzzle by landing guest Raven planes | 289 | Passenger Jim Parker | 
| 7) A Stubborn Manuscript | Acquire the Voynich Manuscript by completing Puzzles of the Past collection | 302 | Collector Mr Wulf | 
| 8) Enough of Mind Tricks | Send a flight with Jim on board to Paris | 280 | Passenger Jim Parker | 
| 9) A Doubtful Acquaintance | Build a House of Doubts by completing Puzzles of the Past collection six times | 300 | Stewardess Jane |