A group of archaeologists are trying to establish if Norsemen brought Christianity to Caithness before St Columba arrived on Iona.
The question has arisen after a dig at an ancient church site at the coastal village of Dunbeath.
Pottery dating back to the 6th Century has recently been found in the area.
A University of Nottingham team is to carry out further exploration which they hope could show evidence of an even earlier Christian church.
Full story at BBC Scotland.