Are there any grammatical errors?
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This book deals with a story of Simon and a Spy.
There are 4 characters, a protagonist Simon, a Spy who dressed as a grandmother, Samantha, a woman who Simon is fall in love with, and a dog which appears suddenly and solve the happening.
On his way to travel, Simon gets to know that police officers are catching the spy.
He bumps into the spy who dressed as a grandmother by chance and a letter which is an important stuff to the spy goes into Simon's bag.
On the train, he falls in love with a beautiful woman named Samantha.
With this opportunity, the spy tries to take the letter, but fails.
Suddenly, a dog appears and takes the letter and bites the spy's clothes.
So the spy's identity is revealed and he is arrested by the police officers.
I was frustrated that Simon didn't notice the spy.
If I were Simon, I could recognize who the spy was and I would try to find the spy.