Istayed inside my tent most of the day and didn't even go out to say hi to Sam when he came around. I was so sad. I didn't feel like I belonged anywhere anymore. I couldn't be a human and wouldn't be a vampire. I was somewhere in between the two.

I got a lot of sleep that night, and the next day I felt better. The sun was shining, and although I knew my problems hadn't gone away, I was able to overlook them for a while.

Evra's snake was sick. She'd picked up a virus, and Evra had to stay in to look after her.

When Sam showed up, we decided to visit that old deserted railroad station of his. Evra didn't mind being left behind. He'd come with us another time.

The railroad station was cool. There was a huge circular yard paved with cracked stones, a three-story house that had served as the guard's house, a couple of old sheds, and several abandoned train cars. There were also railroad tracks running everywhere you looked, overgrown with weeds and grass.

Sam and I walked along some of the tracks and pretended we were on tightropes way above the ground. Every time one of us slipped, he had to scream and pretend to fall fatally to earth. I was much better at the game than Sam, because my vampire powers meant my sense of balance was better than any human's.

We explored a few of the old cars. A couple were run down, but most were okay. Pretty dusty and dirty, but otherwise in good condition. I couldn't understand why they'd been left there to rot.

We climbed onto the roof of one of the cars and stretched out to sit in the sun.

"You know what we should do?" Sam said after a while.

"What?" I asked.

"Become blood brothers."

I propped myself up on an elbow and stared. "Blood brothers?" I asked. "What for? And how's it done?"

"It'd be fun," he said. "We each make a small cut on one of our hands, then join them together and swear an oath to be best friends forever."

"That sounds all right," I agreed. "Do you have a knife?"

"We can use some glass," Sam said. He slid over to the edge of the roof, reached down, and snapped a piece of glass out of one of the train-car windows. When he came back, he made a small cut in the fleshy part of his palm, then handed me the glass.

I was about to cut my palm when I remembered the vampire blood in my veins. I didn't think a small amount could do Sam any harm, but then again…

I lowered the glass and shook my head.

"No," I said. "I don't want to do it."

"Come on," Sam urged. "Don't be afraid. You only have to make a small cut."

"No," I said again.

"Coward!" he yelled. "You're afraid! Chicken! Coward!" He began to sing: "Fraidy cat, fraidy cat!"

"Okay, I'm a coward." I laughed. It was easier to lie than tell the truth. "Everybody's afraid of something. I didn't see you rushing to wash the wolf-man the other day."

Sam made a face. "That's different."

"Horses for courses," I said smugly.

"What does that mean?" he asked.

"I'm not sure," I admitted. "It's something my dad used to say."

We joked around some more, then hopped down and crossed the yard to the guard's house. The doors had rotted off years ago, and most of the glass in the windows had fallen out. We walked through a couple of small rooms, then into a larger one, which had been the living room.

There was a huge hole in the middle of the floor, which we carefully avoided.

"Look up," Sam told me.

I did and discovered I was gazing directly at the roof. The floors in between had fallen in over the years, and all that was left of them were jagged edges around the sides. I could see sunlight shining through a couple of holes in the roof.

"Follow me," Sam said, and he led me to a staircase at the side of the room. He started up. I followed slowly, not sure if it was the smartest thing to do — the steps were creaky and looked as though they might collapse — but not wanting to be called a chicken twice in the same day.

We stopped at the third floor, where the stairs stopped. You could touch the roof from there, and we did.

"Can we get out on the roof?" I asked.

"Yes," Sam said, "but it's too dangerous. The shingles are loose. You could slide off. Anyway, there's something better up here than the roof."

He walked along the side of the uppermost room of the house. The ledge was about two feet wide most of the way, but I kept my back to the wall, not wanting to take any chances.

"This section of floor won't collapse, will it?" I asked nervously.

"It never has before," Sam replied. "But there's a first time for everything."

"Thanks for putting my mind at ease," I grumbled.

Sam stopped a little farther on. I craned my neck so I could see past him and realized we had come to a set of rafters. There were six or seven of them, long pieces of wood stretching from one side of the room to the other.

"This used to be the attic," Sam explained. "I guessed that," I told him.

He looked back at me and grinned. "But can you guess what we're going to do next?" he asked.

I stared at him, then down at the rafters. "You don't mean… You aren't going to… You're going to walk across, right?"

"Right," he said, and set his left foot on the rafter.

"Sam, this isn't a good idea," I said. "You looked unsteady on the railroad tracks. If you stumble up here…"

"I won't," he said. "I was only fooling down there."

He set his other foot on the wooden rafter and began walking. He went slowly, his arms stretched out on either side. My heart was in my throat. I was certain he'd fall. I looked down and knew he wouldn't survive if he fell. There were four stories if you included the basement. It was a long drop. A deadly one.

But Sam made it across safely to the other side, where he turned and took a bow.

"You're crazy!" I yelled.

"No," he said, "just brave. How about you ? Dare to chance it? It'd be easier for you than it was for me."

"What do you mean?" I asked.

"Chickens have wings!" he shouted.

That did it! I'd show him!

Taking a deep breath, I went across, moving quicker than Sam had, making full use of my vampire abilities. I didn't look down and tried not to think about what I was doing and in a couple of seconds I was across and standing beside Sam.

"Wow!" He was impressed. "I didn't think you'd do it. Certainly not so quickly."

"You don't travel with the Cirque without picking up a few tricks," I said, pleased with myself.

"Do you think I could go that fast?" Sam asked.

"I wouldn't try it," I advised him.

"I bet you can't do it again," he dared me.

"Just watch," I said, and darted back across, even faster.

We spent a fun few minutes crossing over and back, taking each of the rafters in turn. Then we crossed at the same time, on different rafters, yelling and laughing at each other.

Sam stopped in the middle of his rafter and turned to face me.

"Hey!" he shouted. "Let's play mirrors."

"What's that?" I asked.

"I do something and you have to copy me." He shook his left hand above his head. "Like this."

"Oh," I said, and shook my hand. "Okay. As long as you don't jump to your death. That's the one thing I won't copy."

He laughed, then made a face. I made one, too. Then he slowly stood on one leg. I did the same. Next he bent and touched his toes. I followed his example. I couldn't wait until it was my turn. I'd do a few things — like jump from one rafter to the next — that there was no way he could copy. For once, I was glad for my vampire blood.

Of course, that was the moment when it went and let me down…

There was no warning. One second I was beginning to stand, having bent to touch my toes. The next my head was spinning, my arms were flapping, and my legs were shaking.