Congregations in under-developed areas are often small and fragile, and children are increasingly marginal to congregations in these as well as other settings. This book explores the challenges of renewing worship in ways that involve children and in churches set in contexts of urban deprivation, constructing a conversation with academic liturgical theology, particularly the work of Gordon W. Lathrop, Don E. Saliers and James F. White. It develops an example of a contextualized liturgical theology, showing how child-hospitable, urban congregations can be shaped and vivified by the renewal of worship.