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Jil Koller

Official Site

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  Debut Manuscript - To Be Released January 2026                                             with Mountain Brook Fire

My Writing Journey - Blog

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Four tiers trade in a perfect balance on the massive spire that comprises the Vertical Horizon. Four magic truth stones maintain that delicate balance, fostering goodwill and restraining evil, until one is stolen, and the Realm is plunged into war.

 

Princess Aratess longs to be a King’s Bowman, sworn protector of the Realm. Bowman Tate Hawthorne, a Reyjik outsider, longs to prove himself worthy of that very uniform. Outside the castle, when the seaward tier of Reyjik overruns the tierdom of Costair, Tate and Tess must escape skyward, warn the King of the Realm, and mount a counterattack, but not before enlisting the help of Deacon, Tate’s childhood friend and lighter-than aircraft pirate. 

 

Will Tate, Tess, Deacon, and a crew of pirates prove enough to stave off invasion and turn the tide of war?

 

Who will win the princess’s love, and does she have the heart of a Bowman?

Works

Biography

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When she isn’t homeschooling, or helping to run the children’s program at church, Jil is debating with her fictional characters… and losing. Jil completed her Bachelor of Arts and Education and went on to complete her Masters of Education, PhD coursework in Literacy Education and is a certified reading specialist. 

Jil lives in Ontario, Canada with her husband and four kids, where they mountain bike, kayak, cliff jump, and snowboard together. They also love camping, roller coasters, and waterslides! She loves to speak at homeschool conferences where she equips and encourages other parents. 

Heart of a Bowman, book one of her debut fantasy trilogy, the Vertical Horizon Series, won a 2024 Foundation Award in YA fiction. It is Jil’s greatest hope that her stories would echo the gospel and point readers to Christ.  

In The Press
Bio

Vertical Horizon Series

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Tel: 705-558-1612 | info@jilkoller.com

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