This mystery can be found in the southeast of Glowecestrescire, near the borders to Hamtunscire and Oxenefordscire.
How to Complete the Devil’s Quoits Mystery
As with all of these types of mysteries, the key to completing them is aligning some part of the mysterious symbol imprinted on the rock. Be sure to use Odin’s Sight to highlight the symbols, then read the stone near the centre for some commentary from Brendan of Clonfert, if you wish.
To align the relevant symbol, make your way south toward the rowing boat by the shore. Get in this and row it a little west until you reach the small stone. Here, the boat will provide you with enough height to align the symbol on this small stone with the symbols on the central set of stones (dolmen). Once the symbol is aligned, the mystery will complete.