Imagine if every song you knew was disappearing. Not just off the page, but from your very mind. This is what is happening to the citizens of City-Along-The-Lake. Music is being stolen from the minds of everyone. No song is safe from theft. While those in charge believe this is an illness that can be cured by the medicos, Allegra, a young, immigrant opera singer, believes she's seen the person responsible for stealing the music.Allegra came to the city to avoid her past. While attending a conservatory, her clan was eradicated by a plague. Now she is left with only songs and memories that she finds too painful to recall but too important to lose. To protect the memories of her past, Allegra must find, follow, and catch the music-thief before all music is gone. Along the way, Allegra is forced to facer her memories to access the songs so she can continue her pursuit.Haunted by strange dreams based on her childhood, Allegra continues her journey with the aide of a seven foot tall magicnician, a drayman who happens to be the husband of a lake siren, several highwaymen, a trader of musical instruments and a reclusive musical prodigy, and a Giant named Yib.Allegra only has a fortnight to catch the music-thief or risk all music disappearing. Forever.