... a monstrous progeny of echoes ...

From Author Wars - https://authorwars.com/books/a-monstrous-progeny-of-echoes-1674242.html

Overview:

Title: ... a monstrous progeny of echoes ...
Author: James Cawthorn
Year: 1973
Type: Interior Art

Variant Titles:

1973. ... a monstrous progeny of echoes ...