"That was a terrible scolding," admitted Halkett, laughing.

"I'll show you the poster," volunteered Sister Eila, going over to her desk. Raising the lid, she picked up and displayed an advertisement.

CHAPTER VIII

Halkett looked curiously at this specimen of a poster which was already very familiar to him. The dead walls of northern and eastern France and Belgium had been plastered with such advertisements for the last year or two, extolling the Savon de Calypso. But what had recently interested Halkett in these soap advertisements was that posters, apparently exactly similar, appeared to differ considerably in detail when examined minutely.

The picture in this advertisement represented, as always, the nymph, Calypso, seated upon the grass, looking out over the sea where the sun shone in a cloudless sky upon a fleet of Grecian ships which were sailing away across the blue waves of the Ægean.

Where details varied was in the number of ships in the fleet, the number and grouping of sails, sea birds flying, of waves, and of clouds—when there were any of the latter—the number of little white or blue or pink blossoms in the grass, the height of the sun above the horizon line and the number and size of its rays.

There was always at least one ship—never more than a dozen; he had counted twenty white blossoms on some posters; varying numbers on others, of white, of blue, or of pink, but never less than three of any one color. Sometimes there were no sea birds.

As for the sun, sometimes it hung well above the ocean, often its yellow circle dipped into it, and then again only the rays spread fanlike above the horizon line.

Savon de Calypso poster