Помогите перевести, пожалуйста.

Right now he was reading the part where Poirot starts his investigation of the murder. Sometimes you just want to skip to the end to just hear his conclusion.
Those 'Grey cells' of his work so well, and you just want to know who the culprit is!
I know it's tiring reading a book out loud,and now he sounds tired as well. So I stop him.