In 1893, Dutreuil de Rhins and Grenard, left Xinjiang in order to cross Tibet and reach Xining in Qinghai.
In December, they reached Lake Namtso, the men and animals exhausted and their supplies run out after a journey that had taken them three months longer than anticipated.
The authorities refused them permission to enter Lhasa and ordered them to turn back, in spite of the bitter cold and lack of supplies.
[1] The following summer, Dutreuil de Rhins was wounded in a skirmish with a group of Golok bandits in lawless country near Tom-Boumdo (province of Qinghai).
He went on to write various books about the history of Central Asia, including lives of Genghis Khan and the Mughal ruler Babur/Baber.