"A Solar Labyrinth" by Gene Wolfe Mazes may be more ancient than mankind. Certainly the cavemen constructed them by laying down football-sized stones, and perhaps by other means as well, now lost to us; the hill-forts of neolithic Europe were guarded by tangled dry ditches. Theseus followed a clew - a ball of thread - through the baffling palace of Minos, this becoming the first in what threatens to be an infinite series of fictional detectives. The Fayre Rosamund dropped her embroidery with her needle thrust through it, but forgot the yarn in her pocket, thus furnishing Queen Eleanor's knights with the clue they required to solve Hampton Court Maze. Of late, few mazes have been built, and those that have been, have been walled, for the most part, with cheap and unimaginative hedges. Airplanes and helicopters permit rampant mar-sports to photograph new mazes from above, and the pictures let armchair adventurers solve them with a pencil. Gone, it might seem, are the great days of monsters, maidens, and amazement. But not quite. I have heard that a certain wealthy citizen has not only designed and built a new maze, but has invented a new _kind_ of maze, perhaps the first since the end of the Age of Myth. To preserve his privacy I shall call this new Daedalus Mr. Smith. To frustrate the aerial photographers in their chartered Cessnas, I shall say only that his maze is in the Adirondacks. On a manicured green lawn stand - well separated for the most part - a collection of charming if improbably objects. There are various obelisks; lamp posts from Vienna, Paris, and London, as well as New York; a pillar-house from London; fountains that splash for a time and then cease; a retired yawl, canted now upon the reef of grass but with masts still intact; the standing trunk of a dead tree overgrown with roses; many more. The shadows of these objects from the walls of an elaborate and sophisticated maze. It is, obviously, a maze that changes from hour to hour, and indeed from minute to minute. Not so obviously, it is one that can be solved only at certain times and is insoluble at non, when the shadows are shorted. It is also, of course, a maze from which the explorer can walk free whenever he chooses. And yet it is said that most of them - most adults, at least - do not. In the early morning, while the shadows of the hills still veil his lawn, Mr. Smith brings the honored guest to the point that will become the center of the maze. The grass is still fresh with dew, and there is no sound but the chirping of birds. For five minutes or so the two men (or as it may be, the man and the woman) stand and wait. Perhaps they smoke a cigarette. The sun's red disc appears above the mist-shrouded treetops, the fountains jet their crystal columns, the birds fall silent, and the shadowy suites spring into existence, a sketch in the faded black ink of God. Mr. Smith begins to tread his maze, but he invites his guest to discover paths of hos own. The guest does so, amused at first, then more serious. Imperceptibly, the shadows move. New corridors appear; old ones close, sometimes with surprising speed. Soon Mr. Smith's path joins that of his guest (for Mr. Smith knows hos maze well), and the two proceed together, the guest leading the way. Mr. Smith speaks of his statue of Diana, a copy of one in the Louvre; the image of Tezcatlipaca, the Toltec sun-god, is authentic, having been excavated at Teotihuacan. As he talks, the shadows shift, seeming almost to writhe like feathered Quetzalcoatl with the slight rolling of the lawn. Mr. Smith steps away, but for a time his path nearly parallels his guest's. "Do you see that one there?" says the guest. "In another minute or two, when it's shorter, I'll be able to get through there." Mr. Smith nods and smiles. The guest waits, confidently now surveying the wonderful pattern of dark green and bright. The shadow he has indicated - that of a Corinthian column, perhaps - indeed diminishes; but as it does another, wheeling with the wheeling sun, falls across the desired path. Most adult guests do not escape until they are rescued by a passing cloud. Some, indeed, refuse such rescue. Often Mr. Smith invites groups of children to inspect his maze, their visit timed so they can be led to its center. There inlaid upon a section of crumbling wall that at least _appears_ ancient, he points out the frowning figure of the Minotaur, a monster that, as he explains, haunts the shadows. From far away - but not in the direction of the house - the deep bellowing of a bull interrupts him. (Perhaps a straying guest might discover stereo speakers hidden in the boughs of certain trees, perhaps not.) Mr. Smith says he can usually tell in advance which children will enjoy his maze. They are more often boys than girls, he says, but not much more often. The must be young, but not too young. Glasses help. He shows a picture of his latest Ariadne, a dark-haired girl of nine. Yet he is fair to all the children, giving each the same instructions, the same encouragement. Some reject his maze out of hand, wandering off the examine the tilted crucifix, the blue-dyed water in the towering Torricelli barometer, to try (always without success) to draw Arthur's sword from the stone. Others persevere longer, threading their way between invisible walls for an hour or more. But always, as the shadow of the great gnomon creeps toward to the sandstone XII set in the lawn, the too-old, too-young, insufficiently serious, and too-serious drift away, leaving only Mr. Smith and one solitary child still playing in the sunshine.