Christmas Books Santa's Secret

Everyone knows that when Christmas rolls around Santa employs a legion of helpers to ensure the season goes off without a hitch. But between the santas on parade, the santas at the malls, and the ones ringing bells in front of busy department stores...one intrepid investigator wants to know exactly WHO the real Santa is. Armed with a notebook, pencil, and a barrage of questions, can this young detective get to the bottom of Santa's secret?