Penny Nichols And The Black Imp — Joan Clark

PENNY NICHOLS AND THE BLACK IMP is #3 in the Penny Nichols series of detective stories for girls.Penny befriends another troubled young lady, Amy Coulter. Amy's sculpture, the Black Imp, was the best entry in an art contest, but the prize went to an inferior work of art. Even worse, Amy is now accused of stealing a valuable Rembrant painting from the museum! Penny is certain that Amy is innocent and even helps Amy evade the police. After Penny chances to see Amy accepting a payment from a man connected with the museum, Penny worries that she may have acted rashly in helping Amy maintain her freedom.