Claudia is spending two weeks at her aunt's (a boarding house for the elderly). When the neighbor girl takes her for a hike in the woods, she discovers a strange symbol on a cliff that's rumored to be the sign of a dead man...
This episode is one of the more sweet and sentimental ones in the series. There are a few like this peppered throughout all 7 seasons. This particular one is nearly heart-breaking. Poor Marjorie's only love fell off a cliff while drawing the symbol of their eternal affections, a dove. He haunts the cliff still after many decades, still waiting for her to come to him. It's not until Claudia and Kate figure out what he wants that both he and Marjorie are set free, to frolic into blissful eternity arm in arm.