The case of the diamond dog collar / Freeman, Martha

Cammie and Tessa Parks, daughters of the American president, assume the large gems on the dog collar sent as a gift from the leader of a foreign country must be fake, but when two of them go missing, they start to think maybe the diamonds are real and set out to find the thief.

Cammie and Tessa Parks, daughters of the U.S. president, assume the large gems on the dog collar sent as a gift from the leader of a foreign country must be fake, but when two of them go missing, they start to think maybe the diamonds are real and set out to find the thief.