Robert Costa

Dark Angel

True strength isn’t power alone, it’s compassion guiding every choice.

Power can protect or destroy.

Dark Angel follows Bobbie Lynn Harper as she learns that real courage is not about force, but about mercy and restraint. Her path is marked by discipline, sacrifice, and the hard choices between vengeance and compassion. The novel asks a timeless question: what does it really mean to be strong?
book design
book design

The Final Countdown to Dark Angel!

With great strength comes a heavy weight. Dark Angel shows that unchecked force slips easily into cruelty, while justice without mercy is no justice at all. Bobbie’s fight isn’t only against enemies, it’s against the temptation to let anger rule. Her journey proves that compassion is the bravest power of all.

Countdown begins for the actual showdown of Bobbie Lynn Harper, let’s count the days down together to unleash Dark Angel with an early release on 15th of Oct in Frankfurt Book Fair. Are you excited?

🌟Release Date: Coming Soon🌟

Author Robert
Meet the Author

Robert Costa

Turning a life of grit and quiet faith into stories of courage.

Robert Costa grew up in a family of Portuguese immigrants who settled first in Newark, New Jersey, and later in the small fishing town of Belford. His childhood was shaped by hard work, faith, and the kind of strength that speaks through actions, not boasts. Those lessons run through Dark Angel: the balance between justice and mercy, the immaculate courage to protect, and the belief that true heroism lives in the heart that chooses compassion.

About the Book

A reflection on real strength and the price of mercy.

Dark Angel tells of power tested by conscience.

Strength fueled by anger consumes, but when paired with mercy, it can heal and protect. Robert Costa blends faith, sacrifice, and suspense into a story where every decision is significant and every act defines character. This is more than a tale of battles; it’s an exploration of what it means to hold power responsibly.

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Why You’ll Love Dark Angel

A divine relic. A human struggle. A hero’s sacrifice for all humanity.

A Hero Forged by Struggle

Bobbie Lynn Harper isn’t a flawless champion. She doubts, she hurts, she fights her own temper. Her courage comes not from perfection but from choosing mercy when revenge would be easier.

Faith and the Weight of Power

At the heart of the story is a relic tied to St. Michael, beautiful, dangerous, and demanding. It offers protection but tests the soul, challenging Bobbie to discover what it truly means to wield strength with grace.

Action with a Soul

The battles thrill, but the heart of Dark Angel is spiritual. It asks hard questions about justice and forgiveness, and reminds us that raw strength without compassion is hollow.

book design

Testimonials

Hear from Readers of Guided by Grace

"Dark Angel is a thrilling mix of history, faith, and heroism. Bobbie Lynn Harper’s journey inspires courage while blending ancient relics with modern-day struggles."
- Bethany
"A captivating story that connects biblical miracles, legendary warriors, and a modern heroine. Truly uplifting and adventurous!"
- Rufus
"Dark Angel kept me hooked—history, mystery, and divine power woven into an inspiring superhero tale."
- Klara
"Powerful, emotional, and adventurous. Bobbie Lynn Harper feels real, a hero with struggles we all share."
- Healy
"An unforgettable story blending ancient relics, spiritual strength, and modern courage. Dark Angel is both thrilling and inspiring."
- Jacob
Girl reading book

Frequently Asked Questions

When will Dark Angel be released?

Dark Angel will have its exclusive early release at the Frankfurt Book Fair in 2025. Readers attending the fair will be the first to access copies of the book. Wider distribution and availability in stores and online will be announced after the event.

The Frankfurt Book Fair will see Robert Costa make an appearance in 2025 to promote Dark Angel. Interested authors and book fans will get to meet him, hear about the inspiration of the book, and receive an early signed copy.
Dark Angel follows Bobbie Lynn Harper, a young warrior caught between power and compassion. With its themes of justice, sacrifice, and faith, the book questions the responsible use of strength, thereby contesting the very notion of heroism in a cruel world.
Yes. While the Frankfurt Book Fair marks the exclusive early release, the book will later become available to a wider audience. Exact dates for online and bookstore sales will be shared after the fair, ensuring readers everywhere can experience Robert Costa’s story.
Yes. Dark Angel is the beginning of a larger story. The outline includes thirteen chapters that build a complete arc, and Robert Costa has planned further development of the characters and world. Readers can expect this release to be the foundation of a continuing saga.
Early Release at Frankfurt Book Fair 2025

🌟 Experience the First Release of Dark Angel and Meet Author Robert Costa in Person! 🌟

This is your chance to meet the author behind Dark Angel and discover a story that unites strength, compassion, and faith. Join Robert Costa in Frankfurt and be among the first readers to experience Bobbie Lynn Harper’s journey.