The Girl in the Golden Atom is a science fiction novel by American author Ray Cummings first published in 1923.

A classic work of science fiction, this novel was one of the first to explore the world of the atom.

The Girl in the Golden Atom is the story of a young chemist who finds a hidden atomic world within his mother’s wedding ring. Under a microscope, he sees within the ring a beautiful young woman sitting before a cave.

While examining a golden ring under a microscope, a chemist discovers a sub-atomic world. During his examination of this world he sees a beautiful young girl.

After developing chemicals that will allow him to either shrink or grow larger in size, he and three friends journey to this small world.

Ray Cummings (1887-1957) was an American author of science fiction, rated one of the "founding fathers of the science fiction pulp genre".

Having worked for Thomas Alva Edison, Ray Cummings was inspired by science’s possibilities and began to write science fiction. 

His most highly regarded work was the novel The Girl in the Golden Atom published in 1922. His career resulted in some 750 novels and short stories, using also the pen names Ray King, Gabrielle Cummings, and Gabriel Wilson.