All of Dinotopia seems to be falling apart and prey to the pterodactyls as the sun-stones, its power source, systematically break down. Zippo helps the brothers escape from arrest to meet Cyrus on a quest for stones and the way off the island a late explorer discovered. It turns out to be an elaborate trap at the old temple, where they meet up with father Karl, whom they had presumed dead, while Cyrus perishes in the explorer's submarine after stranding the Scotts, who seek their own way out.
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[his last words; before the giant eel swallows his submarine
No... No! Not like this!