The Trilogy of TwoUnknown - 2015
Pursued by ominous Enforcers, identical twins Sonja and Charlotte, musical prodigies with extraordinary powers, must embark on a perilous journey through enchanted lands in hopes of unlocking the secrets of their mysterious past.
Publisher: New York, NY : G.P. Putnam's Sons, 
Branch Call Number: J Malouf
Characteristics: 399 pages : illustrations ; 24 cm.
Alternative Title: Trilogy of 2.