Karoline Ettinger
The barrier is breaking.
One healer. One prophecy. Two worlds on the edge of war.
The Kallos Trilogy
Cross the ThresholdBook I — A Healer's Prophecy
The Kallos Trilogy
Three books. One prophecy.
A healer who travels between worlds. A Dark Fairy King who wants her powers. And a prophecy that binds them.
Book I
A Healer's Prophecy
She came to learn her healing magic. The prophecy had other plans.
Alina has always felt something different about herself — a warmth in her palms when others ache, an urge to mend lives. When she stumbles through a portal into the Kallos, she discovers why. A prophecy has been waiting for a healer exactly like her to save the realms. But the Dark Fairy King has plans of his own.
Discover
Book II
A New Generation
She survived the crossing. Now she must build an army.
Alina returns to the Kallos with a mission: train in her powers and help the new generation of healers, elves, and fairies drawn from every corner of the realm, before the barrier falls for good. But time is running out. And not everyone in her training circle is who they claim.
Discover
Book III
The Three Unite
One bloodline. Three generations. One final choice.
The prophecy approaches its end. One bloodline, three generations, and one healer who never chose any of it. As ancient powers awaken across Avalon, Exotia, Vordar, and Atlantis, Alina must reunite forces that have severed their connection — and face the truth about who Atticus really is, a truth that changes everything she thought she knew.
Discover
Prequel
Of Stardust and Ruin
Before the prophecy. Before Alina. Before everything.
The story of how the barrier was built — and what it cost. Karoline Ettinger returns to the Kallos to reveal the creation of the Dark Fairy King that changed two worlds.
DiscoverWho walks these worlds
Meet the Wayfarers
Some cross the barrier seeking power. Some seek salvation. One crosses because the door was waiting for her.
The Author
Karoline Ettinger
- HomePacific Northwest
- RootsSouthern Arkansas
- FamilyHusband · Three daughters
- By dayYogi · SLP · Homeschool mom
- PublishedThe Kallos Trilogy, 2024
Why Kallos
“I am passionate about providing our youth with stories of light, love, and hope — touching young hearts through the power of words.”
Karoline found her creative muse among the towering forests of the Pacific Northwest. Watching her three daughters play, imagine, and wonder — she knew the stories forming inside her were the ones they needed to read.
The world she built
The Kallos Trilogy was published in 2024 — three books written for the young readers who still believe that one person, standing at the right threshold, can change everything.
Her speech-language pathology background shaped Alina's story more than she expected. The healer who is surrounded by friends who find their strength through each other, larger than any disability or fear.