In a large mansion, Xenia, Kasper, and Thea are playing hide and seek. Kasper is counting, Xenia hides in the library, and Thea hides in the conservatory. Unknown to Kasper, during the counting, Thea sneaks a glance and sees Xenia hiding in the library before heading to her own hiding spot. When Kasper finishes counting and first finds Thea, he asks where Xenia is hiding. Based on Theory of Mind, what goes through Thea's mind at this moment regarding whether or not to tell Kasper where Xenia is hiding and what can be said about Thea's understanding of Kasper's knowledge? Provide a short response.
As Thea contemplates her response to Kasper's question, she has a few things to consider based on Theory of Mind. Thea knows about Xenia's location because she witnessed her hiding while she was moving to her own spot. Thea is aware that Kasper doesn't know where Xenia is because he was counting when both she and Xenia chose their hiding places. The fact that Kasper is asking Thea for Xenia's location confirms that he hasn't found her yet, reinforcing Thea's belief that he is not aware of the library as the hiding spot. 

Since hide and seek is a game where players are expected to find others on their own, Thea understands that directly providing Kasper with Xenia's location would go against the typical rules of the game. She knows that revealing this information would not only spoil Xenia's effort to hide effectively but also take away from Kasper's experience of the game. Thea also infers that Kasper's lack of knowledge about Xenia's whereabouts is an intentional part of the game's challenge.

Considering these points, Thea reasons that she should not tell Kasper where Xenia is hiding, understanding the strategic element of the game and respecting both Kasper's and Xenia's experiences. Thea's internal grappling with this decision reveals her capability to attribute knowledge to others and her understanding that people have different beliefs and information based on their experiences or what they have witnessed - a clear application of the Theory of Mind.