Graphic and user interface design for a London-based location-dependent narrative app, developed as part of the AHRC-funded 'Ambient Literature' project, at the Digital Cultures Research Centre, University of the West of England. Produced by Dr Emma Whittaker. Story by James Attlee. App development by Calvium Ltd. Map design developed from an original visual by Grace Attlee. Collaged map elements and 'swallow' images also by Grace Attlee. The app was awarded the if:book New Media Writing Prize in 2017.