Undine's Blessing

Out now

A new standalone story in the Lunis Aquaria universe!

Follow Marella as she explores the mysterious Emberrain islands, and discover what secrets her father kept from her.

Check it out now!

Featured Books

Devil’s Deal

Book one of the Infernal Contracts trilogy

When two angels break their deal with the devil, he comes for the one they’re trying to protect.

16-year-old Eleonora Santos works through the summer break so she can visit her family in Italy when she graduates. With the new school year around the corner, her focus is back on homework and enjoying life with her tight group of friends. But on their first day back, she finds them fawning over two new guys in their class—Ben and Danny.

Not a day goes by before Nora’s life is turned upside down. Her best friend now hates her, and the boys seem eager to get to know her. Despite their charming efforts, she’d rather have her best friend, not a boyfriend.

When Nora discovers Ben and Danny are not who they claim to be, and their nefarious deal goes wrong, Nora is caught in the middle.

To fix their mistakes, she must face the Devil and betray herself—or pay with her life.

Content Warnings

Mention of assault, bullying, emotional abuse, verbal abuse, stalking



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Lucifer’s Favour

When a demon takes over Hell, you turn to the one you fear the most.

After Nora’s encounter with Beelzebub she can no longer escape the supernatural world–she is marked for life. The demon’s sinister plans will hurt the people she cares about, and the only way to restore order is to track down Lucifer and convince him to reclaim his throne.

Lucifer has his own agenda for staying on Earth and faces threats he’s never seen before. His escapades draw the attention of Earthly demons, ones he doesn’t control, and they’re ready to protect their territory.

Nora and her friends must unite and persuade Lucifer while escaping the dangers and temptations of supernaturals. Living on the border of the ordinary and the extraordinary world challenges Nora and her friends to look beyond what they know, and believe.



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Beelzebub’s Bargain

The Devil is coming, and he’s bringing friends.

When Nora finds out Ben was banished from the Angelic City she needs to know what happened—even if it means going to Hell.

Beelzebub’s right-hand, Jack, forces Ben to revisit a painful part of his past while the demon lord thwarts Nora’s attempts at rescuing him.

After a narrow escape Nora joins Lucifer on a trip to Hades in the Underworld, while Ben finds some much needed help from the Valkyrie in Purgatory.

Together they must find a way to stop Beelzebub, or he will make Earth Hell for the living.

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Tales of Lunis Aquaria

In Tales of Lunis Aquaria, you get the chance to explore a new fantasy universe. Nine short stories set in different regions of the world show you bits and pieces of what’s going on. The observers share their stories and report back to the Lady of the forest. Can they figure out what’s happening? And more importantly, can they stop it?

Explore daunting deserts, treacherous mountains and the deep blue of the Morcain sea.
If you enjoy the fairy tales of old you will enjoy this collection of nine short adventure stories.




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Undine’s Blessing

A dutiful daughter, a mystical archipelago, and a hidden power waiting to command the tides…

Marella spends her days caring for her sick mother and selling her father’s fish. Bound by duty and love, she dreams little of adventure. But when her mother must travel to the city for treatment, her father takes her out to sea, despite her fear of water.

A storm steers them to Emberrain, home to a tribe of magical nymphs and a place of secrets, where Marella discovers a startling truth: her father is a frequent visitor to these mysterious islands. Soon she learns that Emberrain isn’t the only secret he had kept from her.

Marella has the power to control water and communicate with aquatic animals.

Overwhelmed by the magical but dangerous islands, and the secrets of her father, Marella must learn to harness her powers to save herself and her new aquatic friend before they are separated from their parents forever.

Undine’s Blessing is a journey of wonder, where fears are faced and mysteries unravel, and a young girl learns that true adventure begins when you dare to embrace who you truly are.

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Dive into Lunis Aquaria

Tales of Lunis Aquaria

Praise received

Tessa Hastjarjanto

Writer of Wonderous Fiction

Tessa Hastjarjanto is a Dutch/Indonesian writer from the Netherlands. She writes speculative fiction, and blogs at narratess.com about books, fountain pens, and writing.

From a young age, she imitated popular stories and games in creating her own worlds. This love eventually led to a master's degree in media and game studies at the University of Utrecht. However a mundane desk job was enough to inspire her to follow her creative passion. The first fanfics were written in lunch breaks and soon original fiction followed.

With the support of her husband, she now focuses on her writing career while battling chronic pain. Swiss white shepherd, Shiro, acts as a therapy dog to keep her healthy and reduce stress through extensive cuddle sessions.