1868 Ottawa D\u2019Arcy McGee is assassinated. As John A. Macdonald cradles his friend\u2019s bloody head, he blames transplanted Irish terrorists: the Fenian Brotherhood. Within a day, Patrick James Whelan is arrested. After a show trial, Whelan is publicly hanged. That much is history. Did Whelan do the deed? What if Clara Swift, a mere slip of a girl, sees the trace-line of a buggy turn off Sparks Street, moments after the murder? What if housemaid Clara understands her dead mentor\u2019s shorthand, and forges an unlikely alliance with the Prime Minister\u2019s investigator? And ends up being trusted by the condemned man\u2019s wife \u2014 and by Lady Agnes Macdonald . . .Celtic Knot. It\u2019s reimagining a crisis that tested a nation. It\u2019s history with a mystery. It\u2019s A Clara Swift Tale. And it all begins with a shot in the dark.\u200b