The head of the English Puritan Church, Laura Stuart, has summoned the
Index Librorum Prohibitorum with a mission to investigate the bombing of the
Euro Tunnel that connects the UK with France. Index soon departs for the British
Isles with her guardian Touma Kamijou in tow but their when their flight is
suddenly hijacked by a mysterious figure, their plans will have to change! If
they survive, Index and Touma's next unfortunate adventure will lead them to the
heart of the UK!