Book #111 has Nancy and George sneaking out of the window of their cabana. The attacker is unseen by the reader but the girls know full well who it is in the story.
Book #140 has Nancy running out of controlle due to her roller blades coming apart. She just misses getting hit by a speeding vehicle!
Book #151 is the only book (at least for the U.S. editions) that features Nancy in any form of bondage on the cover. Without giving too much away, she's K.O.'d by her attacker. When she wakes up she finds herself trapped in a roller coaster that is running out of controlle. Note that she is improperly strapped in and is in great danger of falling out!
In the climax of Book #155, Nancy finds herself at the mercy of the bad guy in the midst of a tornado outbreak. Weird things happen with tornados but the set-up is almost unbelievable. The speeding car she's being held in gets sucked up by a monster twister. Nancy (unbound) hangs on as long as she can before she herself is sucked out of the car! By a small miracle she ends up with only a few cuts and bruises. The crook fairs fatally as he is destroyed along with the car he was driving.
Nancy and friends on a "run-away" carriage in Central Park.
Terror at the opera as Nancy watches from the wings in horror, as a weight is about to crush the actors on stage!