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About the author

Michael and Sabrina Estafo are sibling authors and best friends for that matter! They grew up in a small town in northern Arizona—and couldn’t wait to be reunited with their city roots after graduating high school. They began crafting the Unlock the Unknown series at the mere ages of four and five. After school and during late-night hangouts, they dove into the fantasy worlds they developed. It wasn’t until they were teenagers that they decided to make their escape something for others to enjoy!

When Michael and Sabrina aren’t writing or developing, you can find them working on other endeavors: Michael with his photography and Sabrina getting crazy in the kitchen. It also isn’t uncommon to see them getting in their fitness—or just being weird, because everybody needs a good laugh.