Making History

It is the 17th century. Ireland is fighting two wars; one with Mevolent and one with history. What would happen if somehow they were to collide? A bomb has been planted into the deepest part of Dublin and it's detonation will bring death and misery to the city, changing the course of the history and the wars. And Skulduggery and Ghastly have less than 5 days to stop it.