By and by Tom shouted: "Fall! fall! Why don't you fall ?" "I sha'n't! Why don't you fall yourself?
You're getting the worst of it." "Why, that ain't anything.

I can't fall; that ain't the way it is in the book.

The book says, 'Then with one back-handed stroke he slew poor Guy of Guisborne.' You're to turn around and let me hit you in the back." There was no getting around the authorities, so Joe turned, received the whack and fell.
"Now," said Joe, getting up, "you got to let me kill YOU.

That's fair." "Why, I can't do that, it ain't in the book." "Well, it's blamed mean--that's all." "Well, say, Joe, you can be Friar Tuck or Much the miller's son, and lam me with a quarter-staff; or I'll be the Sheriff of Nottingham and you be Robin Hood a little while and kill me." This was satisfactory, and so these adventures were carried out.

Then Tom became Robin Hood again, and was allowed by the treacherous nun to bleed his strength away through his neglected wound.