This happens to all craft that enter our waters. They're swallowed by the vortex, destroyed by the great beast.

7 seconds sound clip from the The Viking Women and the Sea Serpent (1958) movie soundboard.

You can hear this line at 00:20:31.109 in the Blu-ray version of the movie.

Quote context

[...]

- If you only understood a civilized tongue, I'd tell you some things you big slob.

- And what would you tell me, little man?

- You speak our language.

- A few words I learned from some of your countrymen.

- Were they men of Stonjold?

- Did their craft wear the dragon shield?

- I really don't know.

- This happens to all craft that enter our waters. They're swallowed by the vortex, destroyed by the great beast.

- But some were saved.

- A handful.

- Who? Who was saved, what were their names?

- I can't say.

- Ah, Senya, my son.

- Father, the horns have sounded the boar horn twice already, when are you coming?

- Soon, soon, Senya.

- But as you see, we have visitors.

[...]