Core Readings:
The Silk Road Journey with Xuanzang, Wriggins pp 159 to 180
The Princess in the Tower (a legend from Xuanzang’s Record of the Western Regions) 4 pages
Recommended but not Required:
Ruins of Desert Cathay Vol I, Ch IX pp. 89 to 94, tells Stein’s version of story of the princess in the tower. https://archive.org/details/ruinsofdesertcat01stei/page/88
Video:
YouTube: Silk Road II, 1 of 18: Across the Pamirs https://www.youtube.com/watch?v=cUqIp9ARVIg
This video gives a clear view of the Pamir landscape Xuanzang and Stein travelled at the same point in their journeys.