L. Frank Baum 
The Tin Woodman of Oz (Illustrated) [EPUB ebook] 

The Tin Woodman, whose real name is Nick Chopper, is unexpectedly reunited with the Munchkin Girl he had courted before he became a tin man. Sadly, she has a new love and no longer cares for him. As he attempts to regain her affection, Nick discovers a fellow tin man, Captain Fyter, as well as a Frankenstein monster-like creature, Chopfyt, made from their combined parts by the tinsmith, Ku-Klip.