<Tr> <Th> 31 </Th> <Td> The Ringmaster's Secret </Td> <Td> 1953 </Td> <Td> Harriet Stratemeyer Adams </Td> <Td> Harriet Stratemeyer Adams </Td> <Td> </Td> <Td> June Dunn </Td> </Tr> <Tr> <Th> 32 </Th> <Td> The Scarlet Slipper Mystery </Td> <Td> 1954 </Td> <Td> Charles Strong </Td> <Td> </Td> <Td> Ann Shultes </Td> </Tr> <Tr> <Th> 33 </Th> <Td> The Witch Tree Symbol </Td> <Td> 1955 </Td> <Td> Harriet Stratemeyer Adams </Td> <Td> </Td> </Tr> <Tr> <Th> 34 </Th> <Td> The Hidden Window Mystery </Td> <Td> 1956 </Td> <Td> Patricia Doll & Harriet Stratemeyer Adams </Td> <Td> </Td> <Td> Mary Fisher </Td> </Tr>

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