First kids mysteries

Seven-year-old Tessa and ten-year-old Cameron, daughters of the first female president--and owners of a very rambunctious dog--play detective when a baton belonging to the director of the Marine Band goes missing at the White House.

With the help of their rambunctious dog, Hooligan, seven-year-old Tessa and ten-year-old Cammie, daughters of the first female president, investigate when Dorothy's ruby slippers vanish while on loan to the White House.

Seven-year-old Tessa and ten-year-old Cammie, daughters of the first female president, and their dog Hooligan, investigate when an ostrich egg is substituted for a rare dinosaur egg on loan from another country.