Hilary Travis holds a Masters and Honours Degrees in Archaeology. In addition to over 20 years experience as an archaeologist, she also has over 20 years combat experience in Japanese martial arts, and over 10 years in reconstruction of Roman and medieval period artefacts. John Travis is an established author, his first book, Coal in Roman Britain, was based on his PhD thesis. He holds a Masters Degree and Doctorate in Roman Archaeology from the University of Liverpool. He is an archaeologist with over 30 years experience, and an Associate member of the Institute of Field Archaeologists (AIFA). Both Hilary and John are active re-enactors, as members of both the Chester Guard (Deva VV) Roman Society and the Thomas Stanley Retinue (Wars of the Roses Medieval group).