The Sovereign Files: The Silent Order By Agnith J. Banerjee

When private investigator Ahaan Mehra boards The Kohinoor Express, he expects an escape from reality—but the discovery of a dead body changes everything. As the train races across continents, Ahaan is pulled into a web of deception, betrayal, and a conspiracy far greater than he imagined.

With danger lurking in every carriage and time running out, Ahaan must uncover the truth before it’s too late. But some secrets are buried for a reason… and those who dig too deep may not make it out alive.