In FSX,we can load some miscellaneous missions to achieve. This one is about three pilots who disappeared in 1943 in the Hymalayas. They were looking for a place like Sangri-La. Now this is the story:
A fellow came at my office ( a Nordair branch) at the Dang airport(VNDG). He hired me and my plane to find his father who disappered in 1943 in the Himalayas. He had an old paper with few explanations about the place his father might went. I told my customer to come back early tomorrow morning for the trip. First stop will be the Jomsom airport (VNJS) and we will make another flight to the unknown destination (with the few hints on the paper of his father), hoping to find the place after more than 70 years later. Hoping to find the place.
My plane is a Beechcraft King Air 350 with 2 P&W engines (PT-6). This plane can fly very high and easy to pilot.

Thank you to Mrs Gera Godoy who make the story and the sceneries mission(ROC NEPAL) for FSX.