Siege of the Silent City: Oathbound Relics - Book 4

By N. Thane Hallow

Time doesn't move in the Silent City-it waits.

Marked PRIME-VERIFIED, Kael is pulled toward a metropolis trapped beneath a shimmering still-dome where water hangs mid-fall, sound arrives late, and every wrong step is "corrected" with crushing force. Outside the dome, Warden-Captain Sereth has already built a siege ring of spikes, snares, and watchfires-waiting for the key to walk into his trap.

Inside, echo-magic rewrites the rules and the Engine's looping Echo Knights hunt by repetition. At the heart of the city, the Resonation Spire holds Anchor #4-power Kael needs to survive what's coming. But taking it will collapse a still-zone, free the trapped...and wake defenses designed to test whether Kael is worthy to be the Engine's key.

Buried beneath the spire is proof the Silent City was never an accident. Kael's name was written into the Prime ledger long before the crime that ruined him.

The harvest is arming.
And the thing inside Kael is whispering a bargain-soft as velvet, sharp as a knife.

Book 4 of the Oathbound Relics series.

• Format: Paperback
• Language: English
• ISBN: B0GKVWTNPJ
• ISBN13: 9798246326091
• Release Date: January 2026
• Publisher: Independently Published
• Length: 238 Pages
• Weight: 0.62 lbs.
• Dimensions: 0.5" x 5.5" x 8.5"