Fresh from her magical holiday at the fossmere and her first screen test in over a decade, Pippin Pearmain travels from Sydney to Delphinium Island to attend a dance festival and to appear in an indie film. From her arrival at the festival it's all go, dancing to new tunes, meeting the other performers, and taking a chance to have her ballet, Delphine, workshopped with a real dance troupe. Filming the first scenes of Half-Life of the Lost is another challenge, as Pip has to perform unscripted.

While indulging in a bit of peace in a supposedly empty barn, Pip unexpectedly encounters someone she knew many years ago. Their connection dates from their shared love of the book Grandmother's Sunshine, the mysterious family treasure that even the knowledgeable Jonquil from The Orange Grove bookshop believes does not exist. Pip has a new dilemma. Is a treasure shared a treasure diminished?