One day the cattle came home without Crom Duv. “He has gone on one of his journeys,” said Morag, “and will not be back for a night and a day.” “Then it is time for me to make my escape,” said Flann. “How can you make your escape, my dear, my dear?” said Morag. “If you go by the front the Bull of the Mound will toss you in the air and then trample you into the ground.” “But I have strength and cunning and activity enough to climb the wall at the back.” “But if you climb the wall at the back,” said Morag, “you will only come to the Moat of Poisoned Water.” “The Moat of Poisoned Water?” “The Moat of Poisoned Water,” said Morag. “The water poisons the skin of any creature that tries to swim across the Moat.” Flann was downcast when he heard of the Moat of Poisoned Water. But his mind was fixed on climbing the wall. “I may find some way of crossing the poisoned water,” he said, “so bake my cake and give me provision for my journey.” Morag baked a cake and put it on the griddle. And when it was baked she wrapped it in a napkin and gave it to him. “Take my blessing with it,” said she, “and if you escape, may you meet someone who will be a better help to you than I was. I must keep the twenty-four cats from watching you while you are climbing the wall.” “And how will you do that?” said Flann. She showed him what she would do. With a piece of glass she made on the wall of the byre the shadows of flying birds. Birds never flew across the House of Crom Duv and the cats were greatly taken with the appearances that Morag made with the piece of glass. Six cats watched, and then another six came, and after them six more, and after them the six that watched in the Rowan Tree. And the twenty-four yellow cats sat round and watched with burning eyes the appearances of birds that Morag made on the byre-wall. Flann looked back and saw her seated on a stone, and he thought the Byre-Maid looked lonesome. He tried with all his activity, all his cunning and all his strength, and at last he climbed the wall at the back of Crom Duv’s house. He gave a whistle to let Morag know he was over. Then he went through a little wood and came to the Moat of Poisoned Water. Very ugly the dead water looked. Ugly stakes stuck up from the mud to pierce any creature that tried to leap across. And here and there on the water were patches of green poison as big as cabbage leaves. Flann drew back from the Moat. Leap it he could not, and swim it he dare not. And just as he drew back he saw a creature he knew come down to the bank opposite to him. It was Rory the Fox. Rory carried in his mouth the skin of a calf. He dropped the skin into the water and pushed it out before him. Then he got into the water and swam very cautiously, always pushing the calf’s skin before him. Then Rory climbed up on the bank where Flann was, and the skin, all green and wrinkled, sank down into the water.