The List, by JA Konrath

Some of this book was interesting and fun, some was annoying; overall I'd give it a solid C.   The concept is that children were cloned from DNA of famous figures:  Abe Lincoln, Thomas Jefferson, Joan of Arc, and the like.   An evil, wealthy political king maker seeks to kill them off lest his secret (which I won't spill here least readers want to spend the $2.99 to read it themselves) be revealed.  

Clearly set up for a sequel.  Which I'd read for 99 cents -- but I'd pass on for another $2.99.    Which, I suppose, is a crisper evaluation than a letter grade after all.