Fly Like a Penguin has many characters who come into the story. Some of them become important to the whole outcome of the penguins’ adventures. Others make a brief appearance. I’ve just finished a short story about a minor character, the dog named Goldie whom Hopper meets in Volume 1.
Goldie the Dream Dog is the first of (perhaps) many side stories I’m intending to write, in case any of my readers would like to know what other friends of Hopper did with the rest of their lives.
Goldie is available at Smashwords for free as an ebook. Most likely it will never be a printed book, unless I make an anthology of many short stories.