CHAPTER I.
CAUGHT IN THE ACT

"Help! Police! Murder!"

It was a dark, rainy night in March when this thrilling cry, in a man's voice, came from a house in West Thirty-sixth street, New York.

Two detectives were passing along from Seventh avenue, toward Broadway, when the wild appeal brought them to a sudden pause.

"Hark, Old King Brady!" one of them exclaimed. "Did you hear that cry?"

"Somebody in distress, Harry," replied the tall, gaunt old man, as he shot a keen glance around. "This is a dangerous neighborhood."

The stylishly-dressed youth of twenty nodded, felt to see if he had a revolver in his pocket, and pointed at an undertaker's wagon standing in front of one of a row of houses opposite.

"Queer hour for that fellow to be doing business!" he remarked. "There isn't a light in any of that row of houses, yet the undertaker must be in one of them."

"Help! Help!" came the mysterious voice in smothered tones once more.

This time the Secret Service men located the sound.

It came from the house before which the wagon stood.

"By Jove, the undertaker must be making a job for himself!" exclaimed Old King Brady, pushing his big white hat back, and exposing a strong-featured, smooth-shaven face, in the light of a street lamp.

He unbuttoned the old blue frock-coat he wore, disclosing a standing collar and stock, drew out his watch and fob, and added:

"It's just eight o'clock."

"Shall we go over and investigate those cries?" asked Harry Brady, the youth.

"No, not yet. Get in this area. I see the house door opening."

They glided swiftly into the area of a flat house, and keenly watched proceedings.

Old and Young King Brady, as the pair were called, were the two most celebrated detectives in the Secret Service. They were not related.

On the contrary, they came of different families. But, since the time James Brady took an interest in Harry, and taught him his profession, they had been partners, and made themselves dreaded by all evil doers.

Both were shrewd, brave and daring to a fault, and Harry's ambition made him strive to excel his tutor in every way.

The boy was first to catch view of a man in the open doorway opposite, and he dimly observed that he was tall, thin, dressed in black, wore a high hat, and had a mustache and a pair of bushy side-whiskers.

"Looks like an undertaker," Young King Brady commented in a whisper.

"He's carrying something," added the old detective. "Ah – it's a coffin, ain't it?"

"A wooden box shaped like one. There's another man on – the other end of it," said Harry, whose interest was aroused. "They're coming out."

The second man was a short, roughly-clad negro.

As they staggered under the weight of the box, the detectives inferred that it was heavy. The Bradys could now see a rope tied around it.

The two men carried it down to the wagon, the back doors of which stood open.

Just as they shoved the box into the vehicle, Old King Brady darted across the street, and tapped the tall, thin man on the arm.

He gave a start, a cry of alarm, and wheeled around, glaring at the officer.

"What have you got in that box?" demanded the detective, abruptly.

"My dear sir, really, that is none of your business," replied the other.

"You are mistaken," said Old King Brady, exhibiting his badge. "I am an officer. We heard cries of murder emanate from that building, and this is a singular hour for an undertaker to be removing a corpse."

The tall, thin man nodded, and smiled blandly.

Taking something from his pocket, he handed it to the officer.

"My card, sir," he said, politely. "Name of Solomon Gloom. This is a case of smallpox. House has been quarantined. Here's my Health Board permit to remove the corpse. The rule is to take 'em at night."

He handed over a permit, but it was too dark for Old King Brady to read it.

"Well," said the officer, hesitatingly, "that part may be all right. Who is dead?"

"Albert Reid, the old cotton broker, sir. Got him in a metallic casket in this box. Going to take him to the crematory at Fresh Pond."

"Did he live here?"

"Yes, sir. You can get the particulars inside, if you like."

"How do you account for those yells for help?"

"Came from old Reid's crazy son. He didn't want us to cart away the body. Had a regular fight with him to drive him away. He yelled and fought like a tiger. Really, I thought he'd arouse the whole neighborhood. Had to lock him in a closet."

"Who's in the house with him?"

"No one. We are coming back later, to release him."

"Just wait here. I'll go in and question him."

"Certainly, my dear sir, certainly. Sim, wait in the wagon for me a moment and I'll go up and show the gentleman in. But really, sir, you're running a great risk. It's a contagious disease, and – "

"Oh, I'll chance it," quietly said Old King Brady, as he took a chew of tobacco, and eyed Harry, who was still lurking in the area, opposite.

"As you please, sir. Come ahead," said Mr. Gloom, and as they went up the steps into the big front yard, the man called Sim swung himself up on the driver's seat, and took the whip and reins in his hands.

Beside the undertaker, Old King Brady mounted the front stoop.

Mr. Gloom seized the knob, pushed open the door and said, affably:

"Go right in, sir. The hall is dark, but – "

"Oh, I ain't afraid of that," said the old detective. "I've got matches."

He stepped into the gloomy vestibule ahead of the undertaker, when Mr. Gloom suddenly struck him in the back with both hands.

The old detective was knocked forward, plunged into the hall and fell upon his hands and knees.

Quick as a flash the undertaker darted back, slammed the door shut, fastened it with a key already in the lock and rushed down the steps.

"Go like fury!" he cried, as he sprang upon the wagon.

But Harry had seen him lock Old King Brady in the house, and was at that moment rushing across the street toward them, crying:

"Stop, you scoundrels, or I'll shoot you!"

He had his pistol in his hand.

The undertaker saw him and whipped a revolver out of his hip-pocket.

"Perdition! There's another of them!" he hissed in tones of alarm.

The next moment he aimed his weapon at Young King Brady and fired.

Bang!

The shot echoed loudly through the silent street.

Up went Harry's hands, and he fell prostrate, with blood streaming from a wound on the side of his head.

The driver lashed the horse furiously.

With a snort, the galled beast sprang forward and raced madly along the street toward Broadway, from whence a policeman was running.

"Hello!" yelled the patrolman. "Who fired that shot?"

"Man lying wounded up the street!" shouted the undertaker.

Away dashed the policeman to investigate and the wagon kept on to Sixth avenue, swung around the corner and dashed downtown, under the elevated road.

In the meantime, Old King Brady had risen to his feet.

Realizing that he had been victimized by Mr. Gloom, he tried to open the door.

Finding that it resisted all his efforts, he lit a match, and going hastily into the house, he was astonished to find it empty and untenanted.

In the middle of the parlor floor lay a curious-looking dagger, which looked as if it had been buried in a human body, and the bare boards were stained with the same life fluid.

"There's been a murder committed here," flashed through the detective's mind, as he picked up the knife and put it in his pocket, "and those men have carried away their victim's body in that box!"

He rushed to one of the parlor windows and flung it open, just in time to see Harry get shot. The sight made Old King Brady frantic with fury.

"They've killed the boy and escaped!" he roared.

Then he sprang out the window and landed on his feet in the yard.

It only took him a moment to reach his pupil's side, and lifting the limp form in his arms, carried him to the sidewalk, under the lamp-post.

Here he examined Harry's wound very carefully.

It was only scalp deep, and the rain beating down on his face revived him.

Before the policeman reached the boy, he had regained his senses, and found Old King Brady wiping his face and sticking court-plaster over the cut.

Most of the neighbors had their heads out their windows to see what caused the pistol shot, and the policeman came up panting.

"Oh!" he exclaimed, recognizing the detectives. "It's the Bradys."

"Yes. We had a fuss with the driver of an undertaker's wagon," the old detective explained. "Harry got shot, but it's only a flesh wound."

"I see. How are you feeling now, Young King Brady?"

"A little sore, but otherwise all right," replied the boy, pluckily suppressing a faint feeling, and getting upon his feet. "Where are they?"

"I saw that wagon swing into Broadway and dash downtown," said the policeman.

"Are you able to pursue it, Harry?" asked Old King Brady, in restless tones.

"I think so," the boy replied. "Ride, if you can. It's a suspicious case, Old King Brady. They wouldn't attempt murder to prevent us from prying into this affair, unless they had a powerful reason for it. The policeman had better search that house while we are gone."

"Come on then, my boy. I've got evidence that a dark crime was just committed in that empty house. We'd better verify my suspicions."

And they hastened over to Broadway, boarded a car and were rapidly carried to Fourteenth street, where they alighted to make inquiries.

CHAPTER II.
THE BODY IN THE BOX

A cabman was standing beside his horse at Union Square, and the old detective approached him and asked, hastily:

"Did you see an undertaker's wagon just go by here?"

"Oi did, sor, tin minutes ago," promptly replied the driver.

"In which direction did it go?"

"Turned inter Broadway, an' wint downtown."

"Drive us after it as fast as you can."

"Yis, sor. Get in."

They entered the cab and were driven to Courtlandt street, as different people they spoke to said they had seen the undertaker's wagon as far as that point.

A policeman was seen on the corner, and Harry accosted him with:

"Hello, Bob!"

"Why – Harry – how are you? What are you chasing?"

"After an undertaker's wagon."

"One just left a box in the baggage room at the Pennsylvania depot."

"Look like a coffin?"

"Yes," replied the policeman. "I just came from there. Two men had it. I'll describe them."

And he gave a good description of Sim and Solomon Gloom.