The city is Dublin, the year is 1972. Redser and Pancho are two teenagers from the North Wall. Redser is top of the class, especially good at math. Pancho's knack is finding money, not adding or subtracting it. Redser's parents run the local credit union. Pancho's dad runs riot in the city pubs on pay day. The boys' worlds could not be further apart. Yet they are the best of friends. One day, on his regular paper round, Redser stumbles upon the aftermath of a crime. Two elderly sisters, 'the East Wall witches', have been burgled. But the robbers haven't taken all the money. Redser and Pancho are about to face the biggest challenge of their lives.