IntroductionPart I: Characterising changes in political activism1 Contextualising Islamist organisations in Western Europe (2001-13)2 Reconstructing phases of activism: group moderation, radicalisation and extremismPart II: Exploring the performance of collective emotions3 A theory of emotionalisation in narrative form4 The romantic narrative of Western Islamist organisations5 Narrative emotionalisation and extremismConclusionIndex