13/13 As Sunday presides over a feast, Lucien Gregory appears. Gabriel is back in Saffron Park.
12/13 The men pursue Sunday as he flees them aboard a hot-air balloon. Read by Geoffrey Palmer.
11/13 After the sunset confrontation between motor cars, the detectives return to London.
10/13 The allies head for the coast using horses, then cars to outrun their masked pursuers.
9/13 As Gabriel Syme engages his opponent in a duel, there's a revelation from the Marquis.
8/13 The three men go to France, where Gabriel Syme challenges the Marquis to a deadly combat.
7/13 With new-found ally the Professor, Gabriel rests up before they confront Doctor Bull.
6/13 Syme is chased through the snow from Soho to St Paul's by the mysterious Professor.
5/13 Gabriel Syme despairs when Sunday unmasks an anarchist as a Scotland Yard detective.
4/13 Gabriel Syme meets his fellow anarchists at a breakfast meeting in Leicester Square.
3/13 When Syme turns the tables on Lucien Gregory, the Central Anarchist Council takes action.
2/13 In an underground HQ, Syme witnesses Lucien Gregory addressing the Anarchist Council.
1/13 When poet Gabriel Syme meets Lucien Gregory, he's introduced to a London secret society.