defeats the possibility of creating a more darkly edged tome 
(ROOT (VP (VBZ defeats) (NP (NP (DT the) (NN possibility)) (PP (IN of) (S (VP (VBG creating) (NP (DT a) (ADVP (RBR more) (RB darkly) (VBN edged)) (NN tome))))))))
(ROOT (VP (VBZ ) (NP (NP (DT ) (NN )) (PP (IN ) (S (VP (VBG ) (NP (DT ) (ADVP (RBR ) (RB ) (VBN )) (NN ))))))))