How does doon react when he sees linas document?

When Doon sees Lina's document, he feels a mix of excitement and curiOSity. He recognizes its potential significance in understanding the problems facing Ember and is eager to decipher its contents. This moment deepens his sense of purpose, as he realizes the importance of uncovering the truth to help their community. Overall, Doon's reaction is one of determination to work alongside Lina to find solutions.