The nightmare from Un-Natural History Not Taught In Bored Schools, etc published by Simpkin, Marshall & Co. (1883). Original… https://www.rawpixel.com/image/571833/crab-nightmare-vintage-artworkFree Image from public domain licenseSpooky skull doodle design vector https://www.rawpixel.com/image/936516/spooky-ghost-doodle-whiteView licenseSkull and a book illustration vector https://www.rawpixel.com/image/572720/skull-and-books-vintage-styleView licenseSpooky skull doodle design vector https://www.rawpixel.com/image/936521/spooky-ghost-doodle-blackView license