"You are the man for me!" exclaimed Minos. "I said I would take you into my own service; and I will. You shall make a cage for the Minotaur!" This was certainly not the reward which Dædalus had looked for. However, he said nothing, but again shut himself up, this time with writing materials, compasses, and rules. After a long time he got a body of workmen together, and built a Labyrinth--a mass of passages and windings so contrived that nobody who was outside could find the way in, and nobody who was once inside could find the way out again. Nobody, that is to say, unless he had the clue, which was of course to be kept secret. The clue which Dædalus invented--and a very good sort it was--was a long silken thread, with one end fastened to the center of the Labyrinth, carried along all the windings to the entrance. Anybody wishing to get in would have to know this, and in which of the many entrances (for there were hundreds of false ones) he must look for the hidden end of the thread. Then all he would have to do would be to wind up the thread into a ball, following it as he wound, until he reached the middle of the maze. And of course there was another clue to lead him out again in the same way. The middle of the Labyrinth was a hall with many columns, and an opening in the roof to let in light and air. This Labyrinth having been finished, Dædalus enticed the Minotaur into the central hall, locked him up there, and gave Minos the key. So the Cretan children were safe, and the monster had to be content with his fourteen young Athenians every year. Dædalus kept on doing work after work for Minos, inventing one thing after another, until the queen, who was a wicked woman, persuaded Dædalus to help her in some piece of wickedness which was discovered by the king. Whatever the affair was, it was kept secret to prevent a Court scandal. The king's anger fell upon Dædalus and Icarus, both of whom he imprisoned in their own Labyrinth--not, I suppose, in the same chamber with the Minotaur. Indeed I am sure not; because if they had been in the same chamber, Dædalus could have got out by means of the clue. But there was no clue to the chamber where he was imprisoned, and he had built the Labyrinth so cleverly that he himself was lost in its mazes. Poor Icarus was in despair. But Dædalus only sat down on the base of a column and thought things over in his usual silent and quiet way. After thinking for some days, until they were nearly starved, he set Icarus wondering by doing as follows, in order:-- First, with one of his wedges, he chipped off pieces of stone from the columns. Secondly, he, in the same way, broke the fragments into pieces of nearly the same size, rounding them roughly. Thirdly, from a strip of his coat he made a sling. Fourthly, he watched the opening in the roof, and whenever a bird passed overhead he discharged a stone, and generally brought it down.