First, Bengali-language newspapers received a mysterious white powder in the mail, with threatening notes alluding to an annual cultural convention that was the subject of a simmering dispute.

Such people had sometimes visited his grandmother, bringing her mysterious powders and oils in murky bottles or buying herbs from her.

In 1969, Mick Jagger had a mysterious white powder in one (he said it was planted).

Vaudeville comedy, a mysterious secret powder, two severed feet, Blackpool and Jerry Lewis are among its elements.

It is a mild mysterious powder that cures the hitherto always fatal sleeping sickness of Rhodesia and Nyassaland.

Yesterday, specially trained firefighters in San Jose, Calif., suited up and donned masks and gloves before entering an airplane where a mysterious powder had been seen.

But certainly for the Egyptians, there seems to be an underlying theme of triangles, sacred knowledge, all tying back to the mysterious white powder.

A mysterious rust-colored powder, for example, sifted out of the sky one night and covered parked cars on the street.