British author Robert Harris has crafted a beautifully-researched historical novel peopled with well-developed characters. A Roman engineer, Marcus Attilius Primus, scurries to repair an aqueduct in the shadow of Mount Vesuvius. His climb to Vesuvius reveals that an eruption is imminent. The ensuing tale keeps this action-packed novel moving along toward its gripping finale. $50, CMA members $40.