Proper Suspense

I have recently been considering how one properly inserts suspense into a plot. That is leaving an event unknown to the reader and making them ponder its broader implications. This is something I fear I am not yet very good at and always seem to give away to much when I am writing about it. To that end I have taken up reading murder mystery novels in order to properly adress this problem. I am beggining by cheating slightly and watching some old Sherlock Holmes films in order to get a view of actors portraying the events followed by some reading of Poirot or some other Agatha Christy novels I have lying around.

This is a small time project for learning skills necessary to better characterization and writing. Wish me luck :)