Sherlock is very brave because him and his best friend went on an expediton all by themselves and almost died. I think Sherlock is really brave because he works well under pressure. He almost died in a barn that was on fire but got out alive because he was brave enough. He is brave because he got in a sword fight with a murderer and won but almost lost
and that takes a lot of courage and bravery.
Sherlock becomes more and more attentive throughout the story. He pays attention to the who collects the yellow powder. He follows the man to a barn inside of a fenced in area of a yard. He later finds out the man was keeping bees in the barn to kill an army with contaminated uniforms. I think Sherlock is also very attentive when he relates the Baron´s two houses so that he knows where everything so that he can escape.
Sherlock is very unhappy because his brother won´t let Sherlock live with him. He is also unhappy because he has to live with his aunt and uncle and he doesn't even know them. He is unhappy when gets a note and then realizes it is a fake after he is kidnapped. He is unhappy because he is going to have to make new friends. I think he was really unhappy and not fun to be around in the beginning.
All those traits, attentive, unhappy, and brave all describe Sherlock. After solving the mystery he went from unhappy to grateful for having such good friends, a good teacher, and an understanding aunt and uncle. At the end I think he started liking Farnham. I think he will stay in Farnham and continue his education there with his and so that he can stay with his friends.