From an archaeological and architectural science perspective, the concept of widespread, secret tunnels beneath Thetford Priory is largely unsubstantiated. Extensive surveys using ground-penetrating radar, geophysical analysis, and traditional excavation techniques have meticulously mapped the subsurface. While these studies confirm the presence of robust medieval foundations, intricate drainage systems, and undercrofts, they have not identified any structures that align with the popular image of long, clandestine escape tunnels. The 'tunnels' described in local folklore are most likely misinterpretations or romanticized accounts of these functional, yet impressive, subterranean features.