It has green, buttery flesh and a large central stone.

It can also be the central stone of a burial mound.

The troll pieces go all round the central stone, sir,' he added helpfully.

Though it was now possible to cross, the central stones were still wet, and in that poor light would be treacherous.

The stones stand on an almost north-south alignment, with the central stone slightly offset.

"Touch your hand to the central stone," said the Spirit.

The excavation reports show that the central stone already had its remarkable inclination.

The central stone is slightly tilted and is 2 feet 10 inches tall.

The direction of the line of the three central stones is northeast to southwest.

The central stones are supposed to mark his actual burial place.