One wonders whether the marriage had secretly taken place between the consecutive chapters!
( One ( ( wonders ( whether ( ( the marriage ) ( ( had secretly ) ( taken ( place ( between ( the ( consecutive chapters ) ) ) ) ) ) ) ) ) ! ) )
(ROOT (S (NP (PRP One)) (VP (VBZ wonders) (SBAR (IN whether) (S (NP (DT the) (NN marriage)) (VP (VBD had) (ADVP (RB secretly)) (VP (VBN taken) (NP (NP (NN place)) (PP (IN between) (NP (DT the) (JJ consecutive) (NNS chapters))))))))) (. !)))
A secret marriage definitely happened. 
( ( A ( secret marriage ) ) ( definitely ( happened . ) ) )
(ROOT (S (NP (DT A) (JJ secret) (NN marriage)) (ADVP (RB definitely)) (VP (VBD happened)) (. .)))