One evening in Jasper Park, Humphrey, Kate, Lilly, and Garth were out on a double date. They were currently walking together down by the pond.

"Beautiful evening, isn't it?" asked Humphrey.

"It sure is," said Kate. Garth and Lilly nodded in agreement. With the clear, starry sky, and the full moon reflecting off the clear water in the pond, and the fireflies twinkling around them here and there, it was definitely a beautiful evening.

It had been several weeks since they had gotten married, and both couples were still madly in love with each other. Life was pretty much perfect.

Suddenly Kate saw something out of the corner of her eye and stopped. The other three stopped when they noticed she had stopped.

"What's wrong, Kate?" asked Humphrey.

"Shhh," said Kate. She then pointed far away at the top of a hill on the other side of the pond. It was hard to see, but they spotted a black wolf sneaking as cautiously as it could towards howling rock.

"I think I recognize him," said Kate. "I think it might be Blake."

"Who's Blake?" asked Garth.

"A while ago, Blake was an Alpha in our pack who tried to overthrow my dad and take over the pack. But when my dad defeated him, he was banished for his crimes. Now he's trespassing in our territory."

"Well, then lets teach him a lesson," said Garth.

The four of them nodded and then took off running towards the intruder.

Blake crouched down low in the grass as he looked at his old home. He put his paw to the scar running across his right eye. "Winston, the time has come for my revenge," he said to himself.

"We don't think so!" said a female voice.

Blake looked beside him as four wolves suddenly leapt in and surrounded him, growling.

"What are you doing here, Blake?" demanded the tan furred one. He recognized her voice as the one who spoke before. Then he thought he recognized her.

"Little Kate, is that you?" he asked smugly. "I haven't seen you since you were a pup. My, you have certainly grown. Who else is here?" He looked around at the other wolves. "Is that Lilly?" He looked at Lilly, and then he looked at Humphrey. "And let me guess. You're Humphrey, aren't you? Wow, you've all gotten so big." Then he looked at Garth. "I don't recognize you, though."

"I'm Garth," Garth said with a growl. "And you're trespassing on our territory."

"I have a debt to settle with your father," said Blake.

"You tried to take over the pack," said Kate. "You got what you deserved."

"Not yet, I haven't," growled Blake. He suddenly leaped over them and started running away.

"After him," shouted Kate. The four took off after the black wolf.

Blake ran for the railroad tracks. He saw a train coming as it was about to round the corner. He made for it, hoping to jump past it in order to escape his pursuers. But the train was coming too fast and he knew he would never make it. Just when he was about to jump in front of it, the train zoomed in his way and he quickly changed directions to his left, running along side the train as it passed by, rounded the turn. Kate, Humphrey, Garth, and Lilly turned and ran after him.

Suddenly, all five wolves heard a loud creaking sound. They looked at the train and were horrified when they saw the cars leaning towards them. They were falling off the tracks!

"LOOK OUT!" shouted Humphrey.

"GET OUT OF THE WAY!" shouted Kate as all five wolves jumped out of the way and narrowly avoided being crushed as all of the enormous cars fell off of the tracks and landed with a thunderous crash on the ground. As the car nearest to the wolves, a tank car, hit the ground, its hull cracked open and a strange purple liquid from inside spurted out all over them.

The five wolves all shouted as they were doused with the purple liquid before it stopped spurting and just started leaking out.

"Yuck! Gross!" shouted Lilly.

"You said it," said Kate in agreement as they all looked at the purple stuff in their fur with disgust.

Suddenly, Kate noticed that Blake was no longer there. "Where did Blake go?" she shouted. They all looked around them, but the black wolf was nowhere to be seen.

"He must have ran while we were distracted," said Garth.

"What do we do?" asked Lilly.

Suddenly they heard voices and then saw the shapes of Humans holding flashlights approaching from the front of the derailed train.

"Lets get out of here," said Garth. They all ran away from the train tracks back into their territory.

"We better tell the others that Blake is sneaking around," said Kate.

"Yeah," said Humphrey. "But first I think we should go wash this stuff off us. It stinks!"

They all hurried over to the stream and started washing the purple stuff out of their fur. When they were clean, they got out and shook themselves dry.

"Come on," said Kate. "Lets go tell everyone about Blake."

"Can it wait until morning?" asked Humphrey as he put a paw to his forehead. "I'm suddenly not feeling so good."

"Me neither," said Lilly. "I feel kind of woozy."

"So do I," said Garth in surprise as he also rubbed his forehead.

"Really?" said Kate. "I also feel kind of sick." Her head was beginning to ache and she felt woozy. "You think we all ate a bad piece of caribou?"

"I don't know," said Humphrey. "But I got to get back to our den and lay down."

Kate wanted to inform the pack, but she felt like Humphrey and just wanted to go lie down. She was staring to get dizzy and felt like she might collapse at any moment.

"Okay," she said. "Lets just go back to our dens for the night and rest. We'll tell the pack in the morning."

"Alright. Goodnight you two," said Garth as he and Lilly walked away towards their den together.

Humphrey and Kate started heading for their den, leaning against each other for support. The moment they walked inside their den, they collapsed together and instantly fell asleep.