There is a fragment of a short story by Louce Baker.
Sladen Morris is the boy next door. The girls all think he’s fascinating and tend to deify him now that he’s touched six feet on the wall where his mother has been marking his height since he was two. But I keep remembering when he had braces on his teeth and refused to apply a comb to his hair and wouldn’t even wash his face unless forcefully led to the bathroom. You wouldn’t expect me to go weak-kneed over Sladen, and I certainly never expected to, even if he showed up on a white charger with a new moon for me tucked under a red cape.
And I don't understand this phrase "white charger with a new moon for me tucked under a red cape". What is meant here as "a new moon"? Why "moon" and why is it "a new"?