Hermione was getting impatient with Xue as whenever she asked her something, she would simply nod or say yes or no.
At first she wanted to inquire about Zen, so she asked questions in a roundabout way, but Xue was an intelligent girl, so she pretty much knew where the questions were going.
Xue knew that she was trying to make her accidentally spill out information, so all she did was nod, say yes, or say no.
But this was also part of Xue's personality; she is a girl of few words. Additionally, she was Zen's follower; why would she snitch? He even saved her from that hellhole of a continent where she lived a hard life every day, not knowing when she would die, but it was Zen's appearance that gave her light to life.
In fact, Hermione did not really care about the matter with Gorgon and the Land of Dragons. She knew the extent of the Raverdieu families, so that land being destroyed by them should not be a surprise after what Gorgon did.
