Which town lies between Frogmore and St Albans in Hertfordshire, just inside the M25 motorway that circles London?
Frogmore, Hertfordshire: Frogmore is a village 3 mi north of Radlett in Hertfordshire, and 2 mi south of St Albans. Radlett: Radlett is an affluent town in the county of Hertfordshire between St Albans and Borehamwood on Watling Street with a population of approximately 8,000. Radlett:  It is located inside the M25 motorway.
Radlett