In that part of North Wales which borders on England there are many beautiful grassy hills, often wooded half way up their sides, and lovely green valleys between them. The hills are not too high or rugged to be easily climbed in a morning's walk, and it is delightful to rest on their tops. The air is very fresh; there is a scent of wild thyme growing among the grass on which you tread, and a wide view over all the neighbouring country.

A large and pleasant old house, partly overgrown with ivy, near the top of one of these hills, was the home of Walter and Lucy Lewis. There were pleasure-grounds and plantations all round the house, and the hill had many walks and terraces cut in it, where there were beautiful places, sometimes among trees, sometimes among heath, and ferns, and gay fox-gloves, and always some new view of the green valley beneath. Mr. Lewis was the landlord of most of the farms that lay near, and of most of the white cottages that peeped out every here and there from some thicket or knoll. He was a kind landlord to all his tenants, and was especially careful of his cottagers. He never let a cottage that was badly built, or inconvenient, or made with only one room in it for a whole family as some cottages are; he always had three rooms at least in his, besides a wash-house, a place for coals and wood, and a pig-sty; and with each he always gave enough ground to grow the vegetables for the family. It was a pleasure to see how clean and comfortable these cottages were. There was sure to be a side of bacon hanging from the beams in the kitchen; a good sack of potatoes in a corner; a large home-made loaf or two of good brown bread, and comfortable furniture. Whenever sickness or trouble came upon any of Mr. Lewis's tenants they were sure to find friends in him and Mrs. Lewis, and whenever any good fortune or happiness came to them they were glad to see these good friends come to their gates that they might relate it. Mr. Lewis had built schools for their children, and took great pains about their education, and he had given a large piece of ground to be free for games, for keeping May-day, and other pleasures.

Walter and Lucy were allowed to roam about a good deal by themselves, because every one in the neighbourhood knew them and would take care of them. Their mama used to tell them, whenever they went far from home they should look out for the church steeple, for the church stood on the same hill with their house. With this landmark to prevent their losing themselves, they used to take long walks together sometimes. One day they had gone to the top of a low hill that rose next to that on which their house was, and they came to a hedge. There was a gap in the hedge, near the ground, and through this Walter said he would go.

"Now look, Lucy," said he, "how cleverly I shall creep through feet foremost. My feet are through,—now my knees, now—" he disappeared, and not a word more came.

"Walter! Walter! where are you?" cried little Lucy, peeping through. "Oh, Walter, where are you gone?" She went on with a faltering voice, for she saw that the hedge was at the top of a steep bank, and that he must have slipped down at once to the bottom.

"Lucy," said a voice below, "come down here!"

"I cannot," answered she at first; but after a little encouragement from Walter who now appeared from among some bushes into which he had rolled, she cautiously made her way through the gap, and partly sliding, partly running soon joined him where he stood. Below them was a small lake which they had often seen in their walks, but never had gone close to, and which looked very inviting, and Walter determined to go down to it. Lucy was afraid. She said they had already lost sight of the steeple and how should they find their way back? But Walter declared that nothing could be easier than to climb up the bank the way they came down; so, leading his little sister by the hand and helping her over difficult places, he soon reached the lake with her.

Here everything was very beautiful. There were a great many bright flowers, of which they gathered several, and a number of dragon-flies that flitted over the water with their lacy wings, and their corselets glancing green, gold, and purple in the sun. Walter and Lucy ran along the edge of the lake watching the quick movements of the dragon-flies, till, suddenly stopping, Lucy declared it was growing dark and she wanted to go home.

"Dark!—Why, how can you say so?" said Walter. "It was only three o'clock when we came out." But, as he spoke, he looked up and saw that the sky had become covered with black clouds.

They began directly to clamber up the hill, and reached the top at last; but when they looked round, everything was strange. No steeple was in sight, nor did they see any tree or rock that they knew.