This is my answer. "Bertie strongly dislikes his Aunt Agatha because she treats him poorly" is the best summary of the central idea in the story.
        
                    
             
        
        
        
In taking the rolled impression, the side of the bulb of the finger is placed upon the paper fingerprint card or the fingerprinting device, and the finger is rolled to the other side until it faces the opposite direction.
<span>While reading the sentence above, it would be appropriate to pause 2 times.</span>
        
             
        
        
        
I think bandwagons 
HOPE THIS HELPED