1“Run, Annie! Run!” cried Jack. “To the tree house!” They dashed down the hill together. Through the tall grass, through the ferns, past the Pteranodon, and right to the rope ladder.

2They scrambled up. Seconds later they tumbled into the tree house.

3Annie leaped to the window.

4“He’s going away!” she said, panting.

5Jack pushed his glasses into place. He looked through the window with her.

6The Tyrannosaurus was wandering off.

7But then the monster stopped and turned around.

8“Duck!” said Jack.

9The two of them hunched down.

10After a long moment, they raised their heads. They peeked out again.

11“Coast clear,” said Jack.

12“Yay,” whispered Annie.

13“We have to get out of here,” said Jack.

14“You made a wish before,” said Annie.

15“I wish we could go back to Frog Creek,” said Jack.

16Nothing happened.

17“I wish—”

18“Wait. You were looking at a picture in the dinosaur book. Remember?” The dinosaur book.

19Jack groaned. “Oh, no. I left the book and my pack on the hill. I have to go back.”

20“Oh, forget it,” said Annie.

21“I can’t,” said Jack. “The book doesn’t belong to us. Plus my notebook’s in my pack. With all my notes.”

22“Hurry!” said Annie.

23Jack hurried down the rope ladder.

24He leaped to the ground.

25He raced past the Pteranodon, through the ferns, through the tall grass, and up the hill.

26He looked down.

27There was his pack, lying on the ground. On top of it was the dinosaur book.

28But now the valley below was filled with Anatosauruses. All standing guard around the nests.

29Where had they been? Did fear of the Tyrannosaurus send them home?

30Jack took a deep breath.

31Ready! Set! Go!

32He charged down the hill. He leaped to his backpack. He scooped it up. He grabbed the dinosaur book.

33A terrible tuba sound! Another! Another! All the Anatosauruses were bellowing at him.

34Jack took off.

35He raced up to the hilltop.

36He started down the hill.

37He stopped.

38The Tyrannosaurus rex was back! And he was standing between Jack and the tree house!