The Blood Circuit: An Echo Adaptation Novel

By Murshed Hussain

They took his sister. Now he'll fight his way through hell to get her back.

Ravenheart has spent seven years hiding - from the empire that destroyed his homeland, from the hunters who slaughtered his people, and from the forbidden bloodline running through his own veins. Invisible is how he's stayed alive.
But when underground slavers kidnap his sister Naia, invisible is no longer an option.

To save her, Ravenheart must enter the Crucible - a brutal underground arena where refugees fight for the entertainment of nobles, and only champions earn the right to buy someone back. The Echo bloodline doesn't make him stronger. It doesn't make him faster. It makes him adaptable - able to learn from every blow he takes, every technique used against him, until he's fighting with a dozen styles that all somehow belong to him alone.

But the Crucible holds secrets darker than underground fighting. A noble sponsor with hidden motives. An ancient enemy the empire insists is a story. And a conspiracy that goes all the way back to the night his homeland burned.
Win or die. Adapt or break. The blood circuit has begun.

Perfect for fans of Red Rising, Fourth Wing, and The Hunger Games. The Blood Circuit is the first book in The Echo Adaptation Trilogy, a progression fantasy series about survival, found family, and a bloodline that turns every wound into a weapon.

Content Note: Contains violence, blood, and themes of systemic oppression. Recommended for ages 14+.

• Format: Paperback
• Language: English
• ISBN: B0HH336L9X
• ISBN13: 9798170521104
• Release Date: August 2026
• Publisher: Independently published
• Length: 380 Pages
• Weight: 1.13 lbs.
• Dimensions: 9.0" x 0.9" x 6.0"