However, I soon saw that my uneasiness had a second and perhaps equally potent source residing in the pictorial and mathematical suggestion of the strange designs. The patterns all hinted of remote secrets and unimaginable abysses in time and space, and the monotonously aquatic nature of the reliefs became almost sinister. Among these reliefs were fabulous monsters of abhorrent grotesqueness and malignity—half ichthyic and half batrachian in suggestion—which one could not dissociate from a certain haunting and uncomfortable sense of pseudomemory, as if they called up some image from deep cells and tissues whose retentive functions are wholly primal and awesomely ancestral. At times I fancied that every contour of these blasphemous fish-frogs was over-flowing with the ultimate quintessence of unknown and inhuman evil.