There are four of them in all, maybe 15 years old.  They are all perched on the edge of a bench, a bench built for two.  They sit, backs to each other, and talk very quietly.  Then, a man walks towards them, two large books cradled under his arm, fingers curled around the binding.  I can see the front cover of the top book, big letters peaking out from under his forearm: SAT’s.  It all makes sense now.  All four girls get up in unison and follow this man.  A beautiful April Saturday afternoon, spent at the library preparing for the SAT’s.