"Lord," said they, "we have marvellous news: a wood have we seen upon the sea in a place where we never yet saw a single tree."
"This is indeed a marvel," said he. "Saw you aught else?"
"We saw, lord," said they, "a vast mountain beside the wood, which moved, and there was a lofty ridge on the top of the mountain, and a lake on each side of the ridge. And the wood, and the mountain, and all these things moved."
"Verily," said he, "there is none who can know aught concerning this, unless it be Branwen."
Messengers then went unto Branwen. "Lady," said they, "what thinkest thou that this is?"
"The men of the Island of the Mighty, who have come hither on hearing of my ill-treatment and my woes."
"What is the forest that is seen upon the sea?" asked they.
"The yards and the masts of ships," she answered.
"Alas!" said they, "what is the mountain that is seen by the side of the ships?"
"Bendigeid Vran, my brother," she replied, "coming to shoal water: there is no ship that can contain him in it."