Amos Meets the Slasher — Gary Paulsen

Why is mild-mannered Amos Binder dressed in leather with slicked- back hair, strutting around the cafeteria and going by a phony name? Could it be because of that new kid, Slasher, who's promised to eat Amos for his lunch? Or has Amos secretly gone undercover? Dunc and his pal Amos have some hot leads and are close to cracking a stolen stereo racket, but Dunc is worried Amos has taken things too far!