A boat crossed the harbor mouth, swinging up on the smooth swell and vanishing when the undulations rolled by. A tug towed a row of barges to an anchored steamer, and the rattle of winches came down the wind. In the background, clouds of dust blew about the coaling wharfs, and a string of flags fluttered from the staff on the Isleta hill. Barbara beckoned a port-guard and inquired what the signal meant.

The Spaniard said an African mail-boat from England was coming in, and Barbara was conscious of some relief. Cartwright was on board and would arrive sooner than she had thought; the boat had obviously not called at Madeira, the time-bills stated. Cartwright would know how to deal with Shillito if he bothered her again. In the meantime she mused about Lister. She had thrilled when he ran up the steps at the hotel, but, in a sense, his arrival just then was awkward.

She turned her head, for the sunshine on the water dazzled her eyes, and the port was not attractive. The limekilns, coal-wharfs, and shabby lava houses had for a background volcanic rocks, bare cinder slopes and tossing dust. Besides, she wanted to think. She would see Lister soon; she wanted to see him, but she shrank. For one thing, the line she ought to take was hard.

By and by she heard a rattle of oars thrown on board a boat behind the neighboring wall; somebody shouted, and Lister came up. His white clothes were clean but crumpled, and Barbara smiled when she saw his hat was new. Crossing the lava pavement, he stopped opposite her and she noted a piece of sticking-plaster on his cheek.

"May I join you for a few minutes?" he asked.

"Of course," she said graciously.

Lister sat down. The sailors had gone off, and except for an officer of the Commandancia, nobody was about.

"I was going to the hotel to look for you. For one thing, I reckoned I ought to apologize. When I came into the veranda and saw Shillito—"

"I think you stopped for a moment at the bottom of the steps!" Barbara remarked.

He colored, but gave her a steady look. "That is so. I admit the thing's ridiculous; but at first I felt I'd better pull out. Then I noted something about your pose; you looked angry."