Bess jumped and regarded the back of her chum's head reproachfully.
"For goodness' sake, Nan!" she cried, "you are never going to start that all over again, are you? I thought you had got over that silly notion you had of being followed."
"I wish it were only a notion, Bess," said the girl, turning such a serious face to her chum that for once even careless Bess was sobered.
"Why, Nan, what do you mean?" she asked. "You can't mean that there is really somebody spying upon you!"
"That's just what I do mean," said Nan soberly. "I didn't want to worry you, Bess, so I didn't tell you. But something happened last night——" She stopped suddenly, for the two men were coming back again, apparently absorbed in conversation.
Nan's eyes were following the figures of two men strolling down the deck. (See page [140])
Presently the tall man and his short companion passed and as they did so Nan gave each a searching look. The men did not happen to see the girls, and soon were out of sight around a turn.