the Lady Astrid. Once aboard the 'Crane,' we would be safe. But how to do the business?"
"By craft only, Biorn. Astrid saw me to-day, and knows we are here. How to get a message to her?"
"That is easy enough. Do you write it, and I will shoot an arrow into her window to-night."
"Good! I never thought of that." Sigurd procured a bit of parchment, and in a few minutes the message was ready. "I told her that to-morrow night we would wait beneath her window. She must contrive to let herself down, and if necessary we will fight our way down to the 'Crane.' Is she below the bridge or above it?"
"Below. I will go down to-morrow and bid the men be ready to receive us. We must get some fresh water on board, too."
An hour later Biorn returned. "The arrow flew straight, Jarl. I waited a few minutes and saw a light cross her shutter thrice."
Sigurd nodded. "Then she understands. Get the 'Crane' ready to-morrow, and return by nightfall. Better have a boat or two at the water-stairs, just at the end of this street."
"Trust me, Jarl," said the old viking, and returned to the ship.
CHAPTER XII.
THE FLIGHT FROM LONDON.
THE return of Biorn and the finding of Astrid happened so close together that Sigurd determined to take advantage of his opportunity. He saw the King twice a day, at meals, and on each occasion Ethelred seated him near the high-seat and conversed affably with him; but Sigurd felt that the iron hand was but concealed within a silken glove, and that the King would soon find means to rid himself of this troublesome Northman.
The day after Biorn's arrival, at the noonday meal, Ethelred called Sigurd to his side as usual.
"How is the search progressing, Jarl? Have you any news yet?"
Sigurd assumed a gloomy air. "I only wish I had some. King Ethelred. My ship arrived last night, and I cannot long delay my return to King Olaf, I fear."
The King seemed unmistakably relieved, and Sigurd judged that his visit to the shops the day before had not escaped the spies. Ketil he had not seen since that first day, but as he always saw some of his men whenever he left the palace, he believed the Norseman was keeping close watch on him.
That evening Biorn entered his room shortly after dark with a coil of thin but strong rope and a light grapnel.
"Is the 'Crane' in shape?" asked Sigurd eagerly. "We had best wait an hour or two to let the streets get deserted."
"Yes, all is ready, and two large boats are waiting at the stairs. We are only three streets from the river, so the escape is open."
"I'm not so sure about that," replied Sigurd uneasily. "If Ketil discovers those boats there, and has been following you, as is likely, we may have trouble yet. However, time enough for that when it comes."
An hour later there were few people in the streets, so Sigurd roused his men and set out.
"We had better not keep together," he said. "Three of you, with Biorn, come with me; the others wait at the corner here. We will not be long."
So the four quickly made their way to the corner of the palace where Astrid's window was located. A high wall enclosed the palace, with a strip of garden inside; the palace itself had but two stories, Astrid being on the upper.
As they reached the wall, Biorn flung
