When they reached the junction of the two seas they found out that they had forgotten all about the fish (which they had carried for food). The fish found its way into the sea.
しかしかれらが，2つ（の海）の出会った地点に(辿?)り着いた時，かれらの魚（のこと）を忘れていたので，それは海に道をとって，すっと逃げ失せてしまった。