ALICE SPRINGS, Australia (Reuters) - To the unwary Englishman it was just a harmless little red pebble, picked up as a souvenir at the base of Uluru, the immense monolith in the central Australian desert once known as Ayers Rock.

"But since then, my wife has had a stroke and things have worked out terribly for my children -- we have had nothing but bad luck," he wrote when he sent the pebble back halfway around the world to its rightful home.

This was just one of hundreds of rocks returned to the Uluru-Kata Tjuta National Park during the past decade, many with similar tales of woe linked by tourists to their decision to take home a souvenir from the sacred Aboriginal site.

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I heard about unlucky rocks from a volcano out in Hawaii. Many people mailed and returned the rocks back. They claim the rocks from the volcano was cursed by the volcano woman.