The Glassmaker's Oath

By Gideon Mercer

Venice, 1498.

When apprentice glassmaker Luca Vettori witnesses the murder of his master, he is left with only a shard of dark glass, a blood-marked clue, and one impossible phrase:

The oath was never about glass.

By dawn, the Republic has named Luca the killer.

Hunted through the canals of Venice, Luca discovers that Maestro Tommaso Barovier was guarding something far more dangerous than a stolen glassmaking formula. Hidden inside mirrors, warehouse records, plague documents, and old family ledgers is a secret Venice has buried for generations - a secret tied to eastern craftsmen, missing witnesses, quarantined ships, and a powerful oath sworn by five keepers.

When noblewoman Serena Contarini realizes her own family is bound to the conspiracy, she must choose between protecting her house and exposing the truth beneath it. Together, Luca and Serena follow a trail of coded glass through Murano furnaces, Rialto warehouses, plague records, prison walls, and the sacred shadows beneath Saint Mark's itself.

But the men who rule Venice do not fear lies.

They fear witnesses.

And some names were never meant to survive.

The Glassmaker's Oath is a cinematic historical mystery-adventure filled with Renaissance intrigue, Venetian canals, forbidden craft, ancient secrets, hidden records, and a conspiracy powerful enough to turn truth into treason.

Perfect for readers who enjoy historical thrillers, secret societies, artifact mysteries, Renaissance settings, and fast-paced adventure with depth, atmosphere, and moral stakes.

• Format: Paperback
• Language: English
• ISBN: B0GZPZV766
• ISBN13: 9798195733858
• Release Date: May 2026
• Publisher: Independently Published
• Length: 506 Pages
• Weight: 1.33 lbs.
• Dimensions: 1.3" x 6.0" x 9.0"