Hilde Van Hulle

When Jonas's grandmother dies, he inherits two foreign objects. The Ghost Rockers soon discover that they belong to a puzzle of five pieces, the 'Five Elements' and even more important: that like objects which, according to legend, to make sure they have contact with the Freebirds. But ... there are pirates on the coast of the objects but some would like to have in their possession in order to talk with the spirits of the deceased. It is all hands on deck for the Ghost Rockers, because if they lose the elements, they lose contact with the Freebirds ... and that could well mean the end of the Ghost Rockers ...

Plop lives in the Melkherberg in the forest where everybody sits together to drink some milk and have cookies. Plop, Klus, Lui, Kwebbel, Smul en Sam love to dance and party. Together they encounter a lot of adventures.

One day, Plop receives a letter from his grandfather, Kabouter Knap, stating that he is very ill. The only thing that can save him is the juice of the carob root. Before the hourglass is emptied, Grandpa Knap can be saved but there is one big problem: Plops grandfather lives on the other side of the gnome forest. Together with Plop's friends, they build a large balloon, so that they fly to Knap in time. Plop stops the juice of the carob root in a basket of puff cakes to keep it safe. But because Plop is so tired, he sinks down on a chair and falls asleep. The next morning, Smul is extremely hungry and, without realizing it, takes the basket with the plop cakes. Plop does not notice this, because he is still sleeping next to the basket of puff cakes. When Smal starts looking for Smul, the hot air balloon rises, with Plop, Klus, Kwebbel and Lui in it. There starts a dangerous journey..