When Odo and his Bolten invade the valley of the Kerten, Timbolt is summoned back to Keromar to use the legendary arrow that never misses it's target, the Worban.
The Worban loses it's powers when it comes into contact with fire. Timbal has to learn the secret of forging a new Worban before the Bolten return to attack Keromar.
Goerki convinces Timbal and Assam to travel to the Moon Valley with him. Wallimer returns to Keromar which is also being visited by Rinda from Tupistan.
Timbal, Goerki and Kelpie are traveling towards the mountain territory of the Noeten. The Bolgen become aware of this and decide to join forces with the Noeten to capture the two Kerten and their Tupi friend.
Having arrived in the Moon Valley, the three travelers search for crashed meteors or 'Hemelsteen'. Meanwhile the Bolten inform the mighty Breas that three Kerten have entered his domain.
Toela has been banished by the Noeten. She shows Timbal the fastest way home to Keromar through secret underground tunnels. Rinda has to remain in Tupistan.
Back home in Keromar, Tibolt and Assam use the Hemelsteen to forge new weapons. Odo the Opperbolt summons reinforcements. But Wallimir has a secret compatriot in the camp of the Bolten.
Now that their enemies have been defeated, Wallimir tries to convince Goerki that all the Finroen weapons have to be destroyed. Alverik finds a secret passageway underneath Keromar.
