Something In the Air, by David Alexander (epub/Kindle/pdf)
Bardo, an agent for the secret police in an unspecified "Capital," is in a particular town to bodyguard a local official, there to announce a new tax policy. Suspecting trouble, Bardo lingers long after the official leaves, observing locals acting suspiciously around a run-down building. Does it hold a secret arms cache? There is more here than meets the eye!