A heart Cath is a procedure that is done to see if there are blockages to arteries supplying your heart with blood. The procedure is pretty simple - routine if you will. You are kind of placed in lala land - you dont feel anything.
Trilogy A trilogy is a set of three works of art that are connected, and that can be seen either as a single work or as three individual works. They are commonly found in literature, film, or video games.
Divergent (trilogy) The Divergent trilogy (also known as The Divergent Series) is a series of three young adult dystopian/science-fiction books by Veronica Roth and published by Katherine Tegen Books. It is set in the future of a dystopian Chicago. The society is composed of five factions, where members of each faction dedicate themselves to the cultivation of a particular virtue. Divergent, Insurgent and Allegiant.