shall tell them about our trip on the canal boat in France," replied Button.

"And I plan to describe to them the Dog Hospital and tell how it was blown up by the Germans," added Stubby.

"It is quite an idea," said Billy, "their having a club like this. It keeps them in touch with all that goes on throughout the whole country. I am quite anxious to see what it is like."

As the hands of the clock in the Ferry station pointed to twelve, they heard a loud meow and looking up they saw the big cat that had first appeared to them sitting on the fence.

"Well, friends, here I am! Are you ready to start?"

"All ready!" replied Billy.

"But how are you to get out?"

"We will show you," said Stubby, whereupon Billy hopped up on the packing box and from it onto the roof of the shed and then jumped down into the alley.

"Very cleverly done!" commended the cat, whose name, by the way, was Tiger because he was striped like one. "But what puzzles me is how your friends are to get out as the jump is too high for them."

"Too high for them, did you say? Nothing is too high for a dog that has done police duty in France. Listen! Did you not hear something hit the fence and then the scratch of nails on the boards? Well, that is my friend Stubby running up the side of the fence. From the sounds, evidently he did not get enough of a running start and fell back. But here he comes! See his head appearing over the top?"

In a second Stubby appeared, balancing himself on the ridge of the fence. The next moment he stood beside them. At the same time Button also ran down a post of the fence.

"Now we are all here, we'll have to hurry to allow for having to stop to hide when we see watchmen and strange dogs. Not knowing any of our members, you will have to be careful not to attack them, thinking they are enemies. I will give you the password. It is three short, sharp barks. On seeing another dog, all our members bark this password and if the dog they bark at does not reply in like manner, they know it is a stray dog. The cats all give three caterwauls in the same manner."

"Oh," exclaimed Button, "here comes a brute of a bulldog, whose mouth looks as if it were just watering for the back of a cat. Unless he gives the password quickly I shall take no chance but run up this tree. I am willing to tackle almost any dog but a bulldog."

"Bow! Wow! Wow!" barked the bulldog as he approached them.

"Bow! Wow! Wow!" replied Stubby, while Billy baaed, "Baa! Baa! Baa!" and Button meowed, "Mew! Mew! Mew!"

By this time the bulldog had come up to them and Tiger introduced them, telling the dog what distinguished friends he was meeting.

They found him most agreeable and that his looks really belied him, just as the appearance of many persons does. As they all trotted along toward the big warehouse down by the dock, Stubby and the bulldog ran side by side, while Billy and the two cats ran on ahead. Presently Stubby barked: "Oh, Billy! What do you think? Our new friend here says he is the full brother of Boozer, the bulldog that belonged to Captain Percy, and that he was in the Dog Hospital at the same time we were there, laid up with a broken leg."

"The world is small after all. To think we should meet over here just after seeing your brother in France!"

"Hiss!" warned Tiger. "No more talking until we are inside the building. We are approaching the warehouse now and we must not let the watchmen see us. The only way we can get in is through a window in the basement that has been left open by mistake. There is a broad plank running from the window down to the floor that the men use with their wheelbarrows to carry out the dirt. It makes it very handy to get out. We all could jump down, but few of our club members can jump up so high. None of us can jump like Stubby here."

"Bow-wow!" barked the bulldog in a low voice as a man with a lantern turned into the alley down which they all were running. "Hide quickly until he passes!"

As the man passed them, they heard him muttering to himself: "I never saw so many cats and dogs in my life as I have seen to-night in this alley. I did not know there were so many in the world! And when I get up to where I saw them they are all gone—disappeared—vamoosed. They must be the ghosts of the dead and gone dogs and cats that used to live in the warehouse."

Just then the bulldog, whose name was Buster, sneezed, which so startled the man that he ran as if he had been shot.

"Nice brave watchmen they have!" said Billy.

"Plague take my nose!" said Buster. "It is so short and stubby that all the dust gets into it and to save my life I can't help sneezing. And I always do it at the most inopportune moment."

Just then a whistle sounded, and Tiger said, "We must hurry! There goes the twelve o'clock whistle at the factory down the river. It is the signal for the night shift to come on."

The warehouse being near where they were, in about five minutes they found themselves entering the low window Buster had spoken about. When they looked inside, it was pitch dark and as if they were looking into a coal pit. But their eyes being such that they could see in the dark, they had no trouble in walking the plank and soon found themselves on the floor of the cellar. It looked a black square in shape and there was absolutely nothing in it, Tiger said. Still in the distance they could see black shapes moving about.

"What in the world is over in that corner?" asked Billy.

"Oh, they are only wharf rats," replied Tiger. "Shall we charge down on them just for fun?"

"Say we do! But I hate rats as I do poison," said Billy.

"So do I, but they are our natural enemies," answered Tiger.

"Ours too," from Stubby.

"You stand and watch the fun, while we rat haters kill a few," suggested Tiger.

"Very well!"

"When I say three, all of you run for the bunch and kill as many as you can," instructed Tiger.

For the next ten minutes you never in all your life heard such squealing, snarling and snipping of teeth as there was in that cellar. Two unusually big cats and two dogs all bound to kill rats were fighting these fierce wharf rats. But what made the battle such a bloody one was that wharf rats are braver than house rats and will fight to the death when attacked. Being large, and having long, sharp teeth, more often than not they get the better of ordinary cats and dogs that are sicked on them. In less than fifteen minutes hundreds of rats had been killed, for Buster was a noted rat killer. All he did was to open his jaws, grab a rat in the middle of its back, give his head a shake and the rat's back was broken. Then he tossed that rat aside and served another one likewise.

The rats had all disappeared or else were lying dead in heaps when Billy heard Stubby give a whine of pain, and turning to discover where he was, he saw him standing in the midst of a pile of dead rats with one nearly half as large as himself hanging to his throat under his jaw.