The stones were found by geofiz and have yet to be excavated.
Its all being written up for the next WANHM
BTW. What is your source for this story?

"Long, long ago in the village of Beckhampton in Wiltshire, there lived three handsome brothers.
The three were not only brothers but good friends as well; alas they had all fallen in love with same beautiful girl from the village. Each brother had vied with the other two for the girl's attention and each
had asked her to marry him. However, as each brother was both kind and handsome the girl was
unable to decide which she wanted for her husband. She was about to tell them that she would choose
someone else from another village when an old woman took her aside and said, "My dear, choose the
one who can bring you the moon."

The beautiful Beckhampton girl looked at the old woman in surprise and said, "How can anyone bring
me the moon?"

"Just ask them." replied the old woman. So the beautiful girl turned back to the three brothers and told
them she would marry the one who could bring her the moon. Each brother looked at the girl and then
at each other and with heads held low they went their separate ways wondering as they went how they
could bring the girl they loved the moon.

And so it happened that on the following night there was a full moon at Beckhampton, and as it rose big
and bright over Waden Hill the beautiful girl and all the villagers gathered at the foot of Silbury to see
which of the three brothers could bring the girl the moon and make her his wife.

The first brother arrived in a wagon pulled by two white horses (it is said that this is where the Wagon
and Horses pub at Beckhampton got its name) and in a loud and clear voice declared that he had
brought with him all his gold and silver and that he planned to give it to the barrow wights of the West
Kennet Long Barrow if they would only bring him the moon for the night. The villagers shuddered at the
mention of the barrow wights but waited patiently as he climbed up to the tomb. Soon he returned
empty handed and with a deathly expression upon his face, and it is said that the first brother was
never seen to smile again.

Then the second brother arrived and announced that he would climb Silbury Hill and from its summit
would pull down the moon with the rope and iron he had slung over his shoulders. The villagers shook
their heads but waited patiently as the second brother climbed Silbury and watched as he stood there
alone casting his rope and iron again and again towards the moon but never drawing even an inch
closer to it. Soon the second brother returned empty handed while the moon still hung bright and round
in the sky, and it is said that he was never able to lift his arm again.

Finally the third brother arrived; all he carried was a bucket in one hand and a rake in the other, and
with a twinkle in his eye and a smile on his lips he waded into the Winterbourne to a place where the full
moon was reflected in the water. The villagers and the beautiful Beckhampton girl watched curiously as
the third brother dipped his bucket into the stream and raked in the moon's reflection. Then he climbed
out of the stream, and with the bucket full of water, strode over to where they all waited. He placed the
bucket at the feet of the beautiful girl and as the water settled the moon's reflection slowly appeared
bright and full within it.

"The moon, my love," said the young man, "it is yours to take with you wherever you will."

***

This tale should have a happy ending but it turned out that beautiful Beckhampton girl was a real tart
and already a couple of months in the pudding club by that 'someone else' from another village. (Nah...
just kiddin'. The handsome third brother and the beautiful Beckhampton girl walked off hand-in-hand
into the moonset and lived happily ever after).