From the Ocean Depths Terror Stalked Mankind!
Something monstrous and terrible was hidden in the dark abyss below the yacht.
The ferocity of its attack on the bathyscaphe was daunting. And ferocity has always, somehow, a suggestion of madness about it.
But the humming sound in the sea was not the product of madness.
It was a technical achievement…..
This 100 page PDF sci-fi adventure comes with Master Resell Rights.