Freddie the Frog and Eli the Elephant are led by an unseen guide to the secret world of the invisible coquis. The coquis speak Spanish and love to play salsa music and dance through the night. Help Freddie and Eli learn the Latin rhythms to discover the identity of their mysterious hosts. The audio CD includes a read-along dramatization, a sing-along song, and play-along Latin rhythm tracks. Kid-friendly salsa dance steps are located at the end of the story. The sixth adventure of this popular series was again written by Sharon Burch, illustrated by Tiffany Harris, and the music was composed by Jose Antonio Diaz.