Flight of the Silver Turtle

Sam is back in Edinburgh with his brilliant uncle, inventor Professor Ampersand, and cousins Zara, Ben and friend Marcia. Their efforts to build an experimental flying boat leads to a dramatic discovery - a long-lost secret invention that holds the key to anti-gravity.

Sam s-a intors la Edinburgh cu unchiul sau genial, inventatorul profesor Ampersand si verii Zara, Ben si prietena Marcia. Eforturile lor de a construi o barca zburatoare experimentala duc la o descoperire dramatica - o inventie secreta pierduta de mult, care detine cheia antigravitatiei.