Jake Knight ran along the deserted towpath past Armley Mills and the industrial museum. It was two o’clock in the morning, and he was so far out of bounds it was not even funny. Of all the nocturnal quests that he had been on, tonight’s was the farthest from school. As for the clue, it was more cryptic than ever before: Idle persons shuffled here. Jake turned the phrase over and over in his mind, trying to tease some meaning from it.
A glimmer of moonlight reflected off the canal. Three smackheads loitered under the railway bridge ahead, kicking a Did You Witness This Crime? placard between them. Jake’s heart pounded as he approached the men. His black sweater and black tracksuit bottoms were hardly conspicuous, but silence was just as important as camouflage. Keep fast, he breathed, and light on your toes.
The loiterers did not see Jake until he was among them, and no sooner had they registered his presence than he was gone again, under the railway bridge and up the side of the embankment, clawing his way through thick undergrowth and stinging nettles, breathing the sweet, cloying smells of wet vegetation and festering litter. There was some angry shouting from the towpath below him, and a brief, fumbling attempt at pursuit.
Jake vaulted a wooden fence, crossed the railway line, and scrambled through a hedge into a housing development. How many miles had he run? Four? Five? He sprinted southeast between brooding tower blocks and came out onto Hall Lane. The boarded-up windows of Mike’s Carpets, Pet World, and Armley -Bingo Hall glared at him as he passed. Not far now.
Latitude was bang on, so all he needed now was to continue east until he hit the right longitude. The lane was rising steeply, and the cold air made him wheeze. The flashing blue dot on his screen crept inexorably eastward. Idle persons shuffled here. Idle persons shuffled here.
1° 34' 40" west. Perfect.
Jake put his hands on his knees and gasped for breath. Then he straightened up and looked around. To his left was a high brick wall. To his right was a cemetery with tombstones leaning crazily in the moonlight. Jake shivered and checked his latitude. He was a fraction too far south, which meant that the thing he sought was not in the cemetery.
A loud voice in his left ear made him jump. “You are now standing at Leeds Prison, formerly known as Armley Jail. Leeds is a Category B prison, which once incarcerated the murderous cat burglar Charles Peace.”
Jake took the earphone out of his left ear and slipped it into the money belt underneath his sweater. He had forgotten that HearPlanet was still running—it was a useful app, but annoying when it made you jump out of your skin.
So this was Leeds Prison, was it? He had seen it from the front, with its gleaming gates and slick visitors’ center, but never from the back. Here an imposing brick wall stood fully fourteen feet high, topped with coils of barbed wire. Beyond the wire loomed the jagged crenellations of the jail itself, a Gothic horror against an inky sky.
Idle persons shuffled here. Jake groaned. It was an anagram! Shuffle the letters idle persons and you got leeds prison. Griff must have lobbed the thimble over this very wall into the exercise yard beyond.
Jake and his mates in the dormitory had invented geo-thimble just a few weeks before, but it was fast becoming a craze, spreading to other houses and even other years. It was basically a high-tech version of the old-fashioned kids’ game hunt the thimble. Boys took turns borrowing an item from someone else—a shoe, a chocolate bar, a penknife, whatever—and hiding it in a remote location. If the owner wanted his “thimble” back, he would have to get it himself, aided only by a GPS reference and a cryptic clue. Tonight’s thimble, the object of Jake’s quest, was a cardboard folder containing his geography project, which was due to be handed in the next day.
Thimbling a prison was cunning, just like Griff, but it was within the rules. Only last week Jake had slid Griff’s watch into a mailbox on the other side of town, forcing -Griff to wait until the early-morning collection and plead with a mailman. If this was Griff’s revenge, so be it. Jake knew he would have to go for it. He had no intention of getting a failing grade this time.
Jake exited map mode and switched on his phone’s flashlight to examine the barbed wire along the parapet. At one point there seemed to be a small gap between the bricks and the wire. With a bit of pushing and wriggling, perhaps he could get through. As for the fourteen-foot-high brick wall—well, that was also doable. He had something of a reputation among the thimblers.
Jake Knight’s a legend. He can walk up walls.
Three years previously, Jake had watched his first YouTube wall run and had decided to master wall running himself. It was the urban cool and the challenge that attracted him, but also the philosophy. Walls were bad news. Walls were the enemy of exploration. Walls proclaimed: Beyond this point you may not tread. Wall running was about breaking those boundaries, mastering your environment—and yes, if truth be told, impressing your mates.
Jake stepped back and took three deep breaths, rehearsing the stunt in his mind. Then he ran toward the wall with short quick strides. His eyes were not on the wall itself but on the parapet above. Don’t focus on where you are was his wall-run mantra. Focus on where you want to be. He gradually built up the power of his steps and jumped off his right foot. I’m a spring, he thought, a tightly coiled spring. He placed his left foot at chest level and launched himself upward, scrabbling with his hands to gain extra height. Another small kick from his right foot, and—reach!—he grabbed the parapet with both hands. Made it.
Jake dangled from the wall, gathering all his force for the final part of the move. Explosive energy was what was needed now. And—liftoff! He pulled with both arms and pushed with the balls of his feet. A second later the adventurer was lying along the top of the parapet, his quads and biceps burning, barbed wire tugging at his clothes, looking down into the well-lit exercise yard of Leeds Prison.
The Chameleon stood in the shadows near the back of the crowd. He was eighteen years old and he wore a black cloak with a deep hood. He watched and listened as Sheikh Ahmed Abdullai Keita performed.
The sheikh’s reputation had preceded him. All along the edge of the Sahara Desert, people spoke in awed whispers about the miracle man on the white stallion. Now he had arrived in the border town Mondoro, in the south of Mali, and he was doing what he did best. Miracles.
The sheikh sat on a straw mat in front of the chief’s hut. He wore purple robes and a white prayer hat embroidered with sequins. Two braided locks of hair hung down, one on either side of his face. He had a short, pointed beard.
“People of Mondoro!” cried the sheikh. “The djinns of the desert and the djinns of the air are here in power. Prepare yourselves for a visitation.”
Ranged in a semicircle around the sheikh stood the villagers, their cheeks slack with wonder. In the last two hours the sheikh had sucked the malaria out of a sick man, made dozens of cola nuts disappear, and conjured a disembodied floating head out of thin air. Now he got up and ran through the crowd toward his magnificent stallion. “Behold!” he cried. “The djinns of the air are coming to bear me aloft on their warm, invisible hands.”
With his arms stretched out on either...