"Why don't you believe it now?" Zac asked later that night, "Because," Will began but he couldn't think of an explanation for his so called 'monster strength'.

"Come on Will you were never strong enough to push Bruno over." Zac stated, "Thanks for the compliment," Will replied sarcastically.

"Now please can I sleep I'm still mad that we have to miss the big game tonight." Will added angrily.

Tonight was the big baseball game, the Eagles against the Falcons, everyone was watching except Will and Zac because their dad was busy with his experiments and didn't want to be disturbed.

Their dad was a scientist and liked to experiment to make new kinds of chemicals, materials, anything that involved science.

"Now, can I please get some sleep without any more of your queries?" Will asked crossly and switched off the lights but there was still light coming from… the moon.

Zac adjusted to the moon's light but Will kept tossing and turning trying to find a dark spot to sleep in.

Eventually he got up to draw back the curtains but as he was about to Will looked at the moon. This was a big mistake.

"Wow, the moon looks quite pretty tonight." Will muttered to himself.

Suddenly from the corner of his eye he saw something shine in the moonlight. He looked down and gasped, sprouting out his fingers were sharp, white claws. He was so shocked he fell back and saw that his toes had also sprouted claws. Then Will heard a tearing sound coming from behind him, he looked and saw that he had begun to grow spikes and a pointed tail. Then he held his head to steady himself and felt his no longer small human ears but long flat mouse like ears. He suddenly felt a weird feeling in his head. He looked in a mirror and saw horns sprouting out of his head.

"Oh no, it couldn't be true." Will thought, just then he noticed he had started to grow crimson red fur. He yelped and fell back.

Now all this noise woke Zac up, "Will please can you keep it down." Zac said grumpily but as soon as he saw his brother he felt more fear than anger.

Standing before Zac was no longer his brown haired older brother but a red furred demon.

"W-W-Will." Zac stammered "I-Is that you?" "Yeah, I think." Will replied a little shakily because his shock.

"Well then… what did I tell you?" Zac exclaimed throwing his hands in the air. "What?" Will asked confused and surprised.

"I told you that you were a monster but you didn't believe me." Zac explained

"It's because it was hard to believe." Will answered back.

"Huh the week of full moons is real. Your monster strength is real and now you're in your monster form." Zac retorted.

"Ok, Will replied. Well I'm going to bed."

"What why?" Zac asked "You can go out in the streets free to do what you want."

"Well I'm not going."

"Come on it's a great night." Zac begged.

Will thought for a moment, It would be cool and besides it's hard to sleep with spikes on your back.

"Alright I'll go."

"Can I come?" Zac asked.

"Grrr, fine but stay on my back." Will said.

Zac got onto Will's back and because of Will's mammoth strength Zac felt as light as a feather.

Will climbed onto the window sill and with a big leap he jumped onto the roof of the house next door.

"So Will, what are we going to do tonight?" Zac asked.

"Just take an evening stroll through the city without being spotted." Will replied, now used to his monster form.

"What! No, you can't just have a stroll through town. What about doing cool stuff like giving Bruno a good scare?" Zac commented.

Will considered it for a while but eventually shook his head. "Sounds fun but if Bruno's parents see me I'll either be in the zoo or in a government lab being tested." Will answered

"Then there's gotta be something interesting to do." Zac replied a little ecstatic.

"Like what?" Will asked.

Suddenly, there was a sound of cheering in front of the boys now.

It was the Eagle Rest Stadium and the big baseball game was on.

"Like That." Zac retorted, "You ran here so fast we nearly past it. Come on let's go have a look." Zac added and this time Will didn't hesitate.

He jumped as high as he could and reached the top of the stadium. It was a great view the boys could see the whole thing and no one saw them.

"This is great; remind me to bring popcorn next time." Will said happily.

"Quick! Here comes the wave." Zac cried and He and Will did the wave, almost falling over in the end.

"Do you know what would make this better?" Will asked "Uh, a home run ball coming straight towards us?" Zac shouted and all at once it hit Will in the nose knocking him and Zac over.

That's when they fell off the ridge of the stadium tumbling down to the ground but thanks to Will's new fast reflexes, he caught Zac (who had fallen off Will's back) and positioned himself ready to hit the ground like a cat.

As soon as they were safe on the ground, Will checked that he had both Zac and the ball with them before heading home.

Leaving the crowd puzzled about where that ball went…