Focusing on the people and the decisons they made, 'The Fall of Dublin' examines the attack on the Four Courts and the subsequent fighting in Dublin in June and July 1922 which signalled the beginning of the Irish Civil War. With the use of new sources the book challenges many of the pre-conceived thoughts on the fighting in Dublin - the role of the leadership on both sides, the personalities of those involved and even the destruction of the Four Courts. These sources not only shed new light on the conflict itself, but more importantly they are invaluable in telling the stories of the ordinary men and women on both sides of the divide who for many years have been forgotten.

They include memoirs from people on the ground, military history bureau witness statements, a complete garrison list of people in the Four Courts, a copy of the army constitution and the proposed Free State constitution, and a copy of the republican proclamation.