杰克从树屋地板上的一个洞里爬了进去。
哇噻!树屋里的确堆满了书，到处都是书。有封面上积满厚厚灰尘的很老很老的旧书，也有封面崭新闪着光泽的很新很新的新书。
“看!你能看得很远很远。”安妮说着，从树屋的窗口向外望去。
杰克同她一起向外望去。俯瞰下去，是其他树木的树梢。在远处，他看见蛙溪镇的图书馆、小学，还有公园。
安妮指向另外一边。
“那是我们的家。”她说。
千真万确。那正是他们的家，就是那个有着绿色走廊的白色木头房子。隔壁是他们邻居家的黑狗——亨利。它看上去小得可怜。
“喂，亨利!”安妮大声喊道。
“嘘!”杰克说，“我们可是这儿的不速之客。”
他又扫视了一下树屋。
“我想知道这些书的主人是谁。”他说。他发现很多书里插着书签。
“我喜欢这本书。”安妮说。她抱起一本封面上有一座城堡的书。
“这儿有一本关于宾夕法尼亚的书。”杰克说。他翻到插有书签的那一页。
“嗨，这里有一幅蛙溪镇的画。”杰克说，“画的正是这里——蛙溪树林!”
“喂!这儿有一本书给你。”安妮说。她举起一本恐龙的书。蓝色的丝绸书签从书页里露出头来。
“让我看看，让我看看!”杰克放下他的背包，从安妮手中夺过那本书。
“你就看看这本，我要看看封面有城堡的那本。”安妮说。
“不行，我们还是别乱翻了。”杰克说，“我们还不知道这些书的主人是谁呢。”
尽管他嘴上这么说着，还是忍不住把恐龙书翻到插有书签的那一页。他实在是控制不住自己。
他翻到会飞的古代爬行动物那页——无齿翼龙。
他摸了摸那巨型的像蝙蝠一样的翅膀。
“哇噻。”杰克嘟嘟哝哝地说，“我多么希望能看看真的无齿翼龙啊!”
杰克仔细看着这幅画，看着画中盘旋在空中的奇异动物。
“啊!”安妮尖叫着。
“怎么啦?”杰克问。
“大妖怪!”安妮大叫着。她指着树屋的窗户。
“别装神弄鬼的，安妮。”杰克说。
“不，是真的!”安妮说。
杰克朝窗外看去。
一个巨型动物正在林梢之上滑翔!它有一个又长又怪的头冠长在脑袋后面，一个皮包骨头的喙，还有一双巨大的蝙蝠一样的双翼!
这真是一只活生生的无齿翼龙!
它划破长空，径直朝树屋冲来。看上去就像一架滑翔机!
大风吹了起来。
树叶颤动不已。
这个动物突然扶摇直上，冲入云霄。杰克想看清楚这个动物，差点儿从窗户跌了下去。
风吹得更紧了，发出呼啸声。
树屋开始打转。
“怎么回事?”杰克呼叫着。
“快下去!”安妮大喊着。
她把他从窗口拉了回来。
树屋不停地旋转着，转得越来越快。
杰克紧紧地闭住双眼，紧紧地抓着安妮。
然后一切都平静了。
绝对的平静。
杰克睁开了双眼。阳光从树屋的窗户斜斜地照射进来。
安妮还在，书还在，他的背包还在。
树屋仍旧架在橡树上。
不过，这不是同一棵橡树。
2 The Monster
Jack crawled through a hole in the tree house floor.
Wow. The tree house was filled with books. Books everywhere. Very old
books with dusty covers. New books with shiny, bright covers. “Look. You can see far, far away,” said Annie. She was peering out the tree house window.
Jack looked out the window with her. Down below were the tops of the other trees. In the distance he saw the Frog Creek library. The element ary school. The park.
Annie pointed in the other direction.
“There’s our house，” she said.
Sure enough. There was their white wooden house with the green porch.
Next door was their neighbor’s black dog，Henry. He looked very tiny.
“Hi，Henry!” shouted Annie.
“Shush!” said Jack. “We’re not supposed to be up here.”
He glanced around the tree house again.
“I wonder who owns all these books，”he said. He noticed bookmarks were sticking out of many of them.
“I like this one，” said Annie. She held up a book with a castle on the cover.
“Here’ s a book about Pennsylvania，”said Jack. He turned to the page with the bookmark.
“Hey，there’ s a picture of Frog Creek in here，” said Jack. “It’s a picture of these woods!”
“Oh，here’s a book for you，”said Annie. She held up a book about dinosaurs. A blue silk bookmark was sticking out of it.
“Let me see it.” Jack set down his backpack and grabbed the book from her.
“You look at that one，and I’ ll look at the one about castles，”said Annie.
“No，We better not，” said Jack. “We don’t know who these books belong to.”
But even as he said this，Jack opened the dinosaur book to where the b
ookmark was. He couldn’t help himself.
He turned to a picture of an ancient flying reptile. A Pteranodon.
He touched the huge bat-like wings.
“Wow，” whispered Jack. “I wish I could see a Pteranodon for real.”
Jack studied the picture of the odd-looking creature soaring through the sky.
“Ahhh!” screamed Annie.
“What?” said Jack.
“A monster!” Annie cried. She pointed to the tree house window.
“Stop pretending，Annie”， said Jack.
“No，really!” said Annie.
Jack looked out the window.
A giant creature was gliding above the treetops!He had a long， weird
crest on the back of his head. A skinny beak. And huge bat-like wings!
It was a real live Pteranodon!
The creature curved through the sky. He was coming straight toward the
tree house. He looked like a glider plane!
The wind began to blow.
The leaves trembled.
Suddenly the creature soared up. High into the sky. Jack nearly fell o
ut the window trying to see it.
The wind picked up. It was whistling now.
The tree house started to spin.
“What’s happening?” cried Jack.
“Get down!” shouted Annie.
She pulled him back from the window.
The tree house was spinning. Faster and faster.
Jack squeezed his eyes shut. He held on to Annie.
Then everything was still.
Absolutely still.
Jack opened his eyes. Sunlight slanted through the window.
There was Annie.The books. His backpack.
The tree house was still high up in an oak tree.
But it wasn’t the same oak tree.
