The year is 701 BCE. The Assyrian king Sennacherib is rampaging through the countryside on a punitive campaign against his rebellious vassal, King Hezekiah of Judah. Egged on by the prophet Isaiah, Hezekiah frantically prepares his capital city for the impending onslaught. In Jerusalem’s lower city, the so-called City of David, the Israelites cut a long water tunnel through solid rock, to divert water from the...