I always bring you mystery, but I never know what form it might take. The mystery of personal behaviour - that's the domain of psychiatrists. Retrogression is which a person for some uncanny reason can recreate what happened hundreds of years ago, baffling even to the experts. Then there is mystery that is tangible - what happened to a famous painting by El Greco which is found in the attic of an old farmhouse. Clare Reed lives in Ithaca with her father, and she has a puzzle on her hands...