In this series, Halpern travels with Vong Savang, the son of Crown Prince Savang Vatthana. Also on board are: 1) at left, Tiao Soukthivong, a son King Sisavang Vong's daughter Tiao Samathi; 2) at right, Tiao Sayavong, one of the youngest sons of Sisavang Vong. Many of these young men were well educated, having studied in France or other countries. Halpern recalls that this was part of a longer trip to Pak Ou.