Olaf was now descended from the rock and was become as one of them. Great was his wonder at the story of the living sand and the trireme.
"The gods of the Britons are strong at times," he said, "but they are not to be depended on. They have done this because of the great sacrifice, that the Romans may not hinder it. Therefore come thou with me a little distance and I will show thee a matter. The Romans are tangled in a wood. Meddle not thou and thine, however, for thou hast another work to do."
"I meddle not," said the jarl, "but I thank these Druid gods. We were closely pushed and in peril when they ensnared the trireme with their sand. I will offend them not, but I would see these great sacrifices and I also would offer my token."
"That the Druids will forbid thee," said Olaf. "Follow me quickly to the crown of this ridge, for it is on the bank of the river."
Even as he spoke there came to their ears a clangor of trumpets, as if many sounded at once.
"Romans!" exclaimed Ulric.
"Sounding first were they," said Olaf, "but these hoarse ones, very loud, are blown by the Druids. Hear, also, the harping. Now look thou, for thou art a captain."
The river before them was but narrow, although it might be deep, and on the other side was a broad open space surrounded by a forest with dense undergrowths of bushes, as if it were marshy. In the open was arrayed a cohort of Roman soldiers, well ordered, but beyond and in their front might be seen and heard much larger numbers of such as they were, all disarrayed and scattered by the copses. None assailed the cohort in the open, but all the forest swarmed with half-armed Britons, hurling darts and plying their light blades. Arrows, also, were flying, and there was a great tumult of mingled sound.
"The men in white robes, keeping afar," said Olaf, "are the Druid priests. This is as an ambush, and the Romans are falling."