Entry 7 -- Ender's Game

What is the mood of this novel? do you find this novel saddens you in any way? why?

It is quite hard to tell the mood of this novel, because it changes every time. First, intense, then, sad, then exciting, and so on. I really found this novel sadden me a lot the part when Valentine, Ender's older sister, sending letter to Ender. Valentine was asked to send letter to Ender by Colonel Graff, because Ender could not continue playing his game. She send a letter to Ender that encouraged Ender, and Ender cried at the thought of his family, and eventually, he could go on with his game. In his game, in the part when he was keep squashing the head of the enemy snake, he kissed the snake instead, and the snake turned into Valentine, and she helped him to complete his tasks.
I almost cried at the thought that Valentine loved Ender forever when everyone, even his own parents had forgotten about him. I could imagine how it would feel to be separated from the parents at that age.