Simplify the following text for a Grade 11 native English-speaking person.
Original: Eventually , Alvin is forced into helping Arthur to escape some slave-hunters , something that requires him to slightly change Arthur 's DNA enough to prevent the hunters ' knacks from identifying the runaway child .
Simplified: Eventually , Alvin is forced into helping Arthur to escape from some slave-hunters , which requires him to change Arthur 's DNA to prevent the hunters ' knacks ( powers ) from finging him .