"...The dragon-that-had-been-Eustace held out it's sore leg gladly enough, remembering how Lucy's cordial had cured him of sea-sickness before he became a dragon. But he was disappointed. The magic fluid reduced the swelling and eased the pain a little but it could not dissolve the gold. Everyone had now crowded round to watch the treatment, and Caspian suddenly exclaimed, "Look!" He was staring at the bracelet..."
"..."This is the Lord Octesian's arm-ring."
"Villain," said Reepicheep to the dragon, "have you devoured a Narnian lord?" But the dragon shook his head violently.
"Or perhaps," said Lucy, "This is the Lord Octesian, turned into a dragon - under an enchantment, you know."
"It needn't be either," said Edmund. "All dragons collect gold. But I think it's a safe guess that Octesian got no further than this island..."
"...In the end the Lord Octesian's arm-ring had a curious fate. Eustace did not want it and offered it to Caspian and Caspian offered it to Lucy. She did not care about having it. "Very well, then, catch as catch can," said Caspian and flung it up in the air.
This was when they were all standing looking at the inscription. Up went the ring, flashing in the sunlight, and caught, and hung, as neatly as a well-thrown quoit, on a little projection in the rock. No one could climb up to get it from below and no one could climb down to get it from above. And there, for all I know, it is hanging still..."

In real life this island, and the small ruined wooden quay nearby on the mainland, are part of the ornamental duck-pond which was created in the estate. This is the regular home of a number of ducks, geese and other water-birds, including a population of approximately 20 pairs of feral Mandarin ducks, which have been present within the park since 1978.
All caches placed with the kind permission of the Tollymore Forest Park Ranger Service