A DIG in the grounds of Croft Castle at the peak of the tourist season could reveal 'more amazing secrets' say archaeologists.

Experts launching the third and final phase of a major archaeological investigation say they hope to shed more light on 'a medieval mystery.'

Herefordshire county archaeologist Keith Ray and a team of volunteers discovered the remains of a medieval castle overlaid by a later Elizabethan manor house at the site last year.

"The digs have revealed some surprises over the last few years and we hope this year will prove no exception," said team spokesman Rob Woodside. "Croft is a remarkable place that is slowly giving up its secrets."

This year's excavations are designed to ask more questions about the medieval castle, including when was it built, how big was it and where was the main gate?

Tree-ring dating

For many years it was thought that the existing house contained elements of the earlier castle, but the archaeological evidence and tree-ring dating suggests it was built on a new site around 1662, later than previously believed.

The evidence explains why Croft church stands unusually close to the house, say the experts.

The archaeology team has been working with the National Trust since 2000 to try and piece together the history of the estate. Discoveries so far appear to "zig-zag haphazardly across history," say the diggers.

The investigation to discover more about the castle, believed to date from as early as the 12th century, is the third phase of a three-year exploration covering a large part of the grounds.

*Dr Keith Ray will lead a tour of the site at Croft Castle on August 20. He will also give a talk on August 21. For reservations call 01568 780246.