was reduced to furtive rustles; light was shrunken to a dark miasma, through which trees loomed with the semblance of men.
Suddenly, murder ceased to be a special fiction of the Press. It became real—a menace and a monstrosity.
Helen could no longer control her thoughts, as she remembered what Mrs. Oates had told her about the crimes. There were four of them—credibly the work of some maniac, whose chosen victims were girls.
The first two murders were committed in the town, which was too far away from the Summit for the inmates to worry. The third took place in a village, but still comfortably remote. The last girl was strangled in a lonely country-house, within a five-mile radius of Professor Warren's residence.
It was an uncomfortable reminder that the maniac was growing bolder with success. Each time he penetrated closer into the privacy of his victim.
"The first time, it was just a street-murder," thought Helen. "Then, he hid in a garden. After that, he went inside a house. And then—right upstairs. You ought to feel safe there."
Although she was determined not to yield to panic, and run, she ceased to pick her way between cart-ruts tilled with water, but plunged recklessly into muddy patches, whose suction glugged at the soles of her shoes. She had reached the densest part of the grove, where the trees intergrew in stunting overcrowding.
To her imagination, the place was suggestive of evil. Tattered leaves still hung to bare boughs, unpleasantly suggestive of rags of decaying flesh fluttering from a gibbet. A sluggish stream was clogged with dead leaves. Derelict litter of broken boots and rusty tins cropped out of a rank growth of docks and nettles, to mark a tramp's camping-place.
Again Helen thought of the murders.
"It's coming nearer—and nearer. Nearer to us."
Suddenly, she wondered if she were being followed. As she stopped to listen, the hollow seemed to be murmurous with faint sounds—the whisper of shrivelled leaves, the snapping of twigs, the chuckles of dripping water.
It was possible to fancy anything. Although she knew that, if she ran, her imagination would gallop away with her, she rushed across the soft ground, collecting poultices of mud on the soles of her boots.
Her heart was pounding when the opposite lane reared itself in front of her, like the wall of a house. The steepness however proved deceptive, for, around the first bend, it doubled, like a crooked arm, to relieve the steepness of the gradient.
Once more, Helen's normal courage returned, for her watch told her that she had won her race against time. The precious new job was safe. Her legs ached as she toiled upwards, but she cheered herself by the reminders that a merry heart goes all the way—that the longest lane has a turning—that every step was bringing her nearer home. Presently she reached the top of the rise, and entered the plantation, which was thinly planted with young firs and larches, and carpeted with fallen needles. At its thickest part, she could see through it, and, suddenly, she caught sight of the Summit.
It was no longer a distant silhouette, but was so close that she could distinguish the colour of the window-curtains in the blue room. The vegetable garden sloped down to the wall which bounded the plantation, and a coil of rising smoke, together with a cheerful whistle told her that the gardener was on the other side, making a bonfire.
At the sight of her goal, Helen slackened her pace. Now that it was over, her escapade seemed an adventure, so that she felt reluctant to return to dull routine. Very soon, she would be going round, locking up in readiness for Curfew. It sounded dull, for she had forgotten that, in the darkness of the hollow, she realised the significance of a barred bedroom window.
The rising wind spattered her face with rain, and increased her sense of rebellion against four walls and a roof. She told herself that it was blowing up for a dirty night, as she walked towards the front gate.
At its end, the plantation thinned down to a single avenue of trees, through which she could see the stone posts of the entrance to the Summit, and the laurels of the drive. As she watched, fresh lights glowed through the drawing-room windows.
It was the promise of tea—calling her home. She was on the point of breaking into a run, when her heart gave a sudden leap.
She was positive that the furthest tree had moved.
She stopped and looked at it more closely, only to conclude that her fancy had tricked her. It was lifeless and motionless, like the rest. Yet there was something about its shape—some slight distortion of the trunk—which filled her with vague distrust.
It was not a question of logic—she only knew that she did not want to pass that special tree.
As she lingered, in hesitation, her early training asserted itself. She began to earn her living, at the age of fourteen, by exercising the dogs of the wealthy. As these rich dogs were better-fed, and stronger than herself, they often tried to control a situation, so she was used to making quick decisions.
In this instance, her instinct dictated a short way home, which involved a diagonal cut across boggy ground, through a patch of briars, and over the garden wall.
She carried through her programme, in the minimum of time, and with little material damage, but complete loss of dignity. After a safe, but earthy, landing in the cabbage-bed, she walked around to the front door. With her latch key in the lock, she turned, for a last look at the plantation, visible through the gates.
She was just in time to see the last tree split into two, as a man slipped from behind its trunk, and disappeared into the shadow.
CHAPTER II. THE FIRST CRACKS
The surge of Helen's curiosity was stronger than any other emotion. It compelled her to rush down the drive, in an effort to investigate the mystery. But when she reached the gate she could see only lines of trunks, criss-crossing in confusing perspectives.
Forgetful of her duties, she stood gazing into the gloom of the plantation while a first star trembled through a rent in the tattered clouds.
"It was a man," she thought triumphantly, "so I was right. He was hiding."
She knew that the incident admitted the simple explanation of a young man waiting for his sweetheart. Yet she rejected it, partly because she wanted a thrill, and partly because she did not believe it met the case. In her opinion, a lover would naturally pass the time by pacing his beat, or smoking a cigarette.
But the rigid pose, and the lengthy vigil, while the man stood in mimicry of a tree, suggested a tenacious purpose.
It reminded her of the concentrated patience of a crocodile, lurking in the shadow of a river bank, to pounce on its prey.
"Well, whatever he was doing, I'm glad I didn't pass him," she decided as she turned to go back to the house.
It was a tall grey stone building, of late Victorian architecture, and it looked strangely out of keeping with the savage landscape. Built with a flight of eleven stone steps leading up to the front door, and large windows, protected with green jalousies, it was typical of the residential quarter of a prosperous town. It should have been surrounded by an acre of well-kept garden, and situated in a private road, with lamp-posts
