José Medina shrugged his shoulders. José Medina's purse was very long and reached very high. It would be quite impolitic for that cruiser to discover José Medina's tobacco stores, as Medina himself and Martin Hillyard, and the captain of the cruiser, all very well knew.

Martin Hillyard continued to draw fine straight lines westwards from the northern coast of Mallorca to the mainland of Spain, some touching the shore to the north of Barcelona, some striking it as far south as Almeria and Garrucha. When he had finished his map-making he handed the result to José Medina.

"See, señor! Your feluccas cut across all the trade-routes through the Mediterranean. Ships going east or going west must pass between the Balearics and Africa, or between the Balearics and Spain. We are here in the middle, and, whichever course those ships take, they must cross the lines on which your feluccas continually come and go."

José Medina looked at the map. He did not commit himself in any way. He contented himself with a question: "And what then?"

"So too with the German submarines. They also must cross and cross again in their cruises, those lines along which your feluccas continually come and go."

José Medina threw up his hands.

"The submarines! Señor, if you listen to the babblers on the quays, you would think that the seas are stiff with them! Schools of them like whales everywhere! Only yesterday Palma rang with the account of one. It pursued a French steamer between Minorca and Mallorca. It spoke to a fishing boat! What did it not do? Señor, there was no submarine yesterday in the channel between Minorca and Mallorca. If there had been I must have known."

And he sat back as though the subject were disposed of.

"But submarines do visit these waters, Señor Medina, and they do sink ships," replied Hillyard.

José Medina shrugged his shoulders and spread out his hands.