Zweigstelle	Standorte	Status	Vorbestellungen	Frist
Zweigstelle: Digitales Medium	Standorte: FIC031000 GOL	Status: Verfügbar	Vorbestellungen: 0	Frist:

In this thrilling volume of the action-adventure series for younger readers, the group of pals known as the Border Boys find themselves in hot water when their exploration of the open range leads them to a mysterious underground river. It's not only a wonder of nature¿it's also a conduit for illegal activities, as the boys soon discover.