The Case of the Piggy Bank Thief(2012)
(The fourth book in the First Kids Mystery series)
A novel by Martha Freeman
Although a stolen piggy bank is normally no big deal, this particular bank belongs to seven-year-old Tessa, whose mother is the president of the United States. When her eleven-year-old sister, Cammie, finds out that the piggy also held an old coin their dog, Hooligan, dug up from the White House lawn, the case really gets complicated--and delicate. The coin in question, they realize, is probably the one archaeologists have been trying to uncover and is worth millions! The girls have got to find the culprit and the coin and turn it in or their mother will have a major scandal on her hands.
Used availability for Martha Freeman's The Case of the Piggy Bank Thief
August 2012 : USA Hardback
July 2013 : USA Paperback
August 2012 : USA, Canada, UK Kindle edition