Features "Into the Unknown", the hit song from Frozen 2! Read and sing "Into the Unknown" with this illustrated songbook. Press 5 buttons to play the melody and practice on your own, then press the big button to sing the whole song with Elsa! This sound book is special because: Hands on interaction engages young readers Singing and music build language and literacy skills Multisensory reading experiences stimulate the imaginations of young readers Matching pictures to play-a-sound buttons builds concentration Includes iconic Frozen characters Elsa and Anna