On the south-western edge of the excavation a shallow hollow in the pre-Roman ground surface has been uncovered which may indicate the location of a large underlying feature such as a ditch. This hollow appears to have been wet and muddy shortly before it was covered by construction deposits associated with the building of the first amphitheatre as we have found the impressions of footprints that have been pressed in to the pre-Roman ground surface. So far we have been able to identify several small human footprints which may belong to a child or small adult - apparently walking around the hollow in bare feet. Several of the footprints may be animal tracks but identification will require further excavation. This sort of survival is very rare in the archaeological record and is usually only identified on coastal sites such as the Severn estuary or more locally on the shoreline at Formby. We will be taking plaster casts of the best preserved footprints over the next couple of days.