Twister on Tuesday

the tree house. They found that it was filled with books.
    Jack and Annie soon discovered that the tree house was magic. It could take them to the places in the books. All they had to do was point to a picture and wish to go there.
    Along the way, Jack and Annie discovered that the tree house belongs to Morgan le Fay. Morgan is a magical librarian from Camelot, the long-ago kingdom of King Arthur. She travels through time and space, gathering books.
    In Magic Tree House Books #5–8, Jack and Annie helped free Morgan from a spell. In Books #9–12, they solved four ancient riddles and became Master Librarians.
    In Magic Tree House Books #13–16, Jack and Annie had to save four ancient stories from being lost forever.
    In Magic Tree House Books #17–20, Jack and Annie freed a mysterious little dog from a magic spell.
    In Magic Tree House Books #21–24, Jack and Annie have a new challenge. They must find four special kinds of writing for Morgan’s library to help save Camelot. They are about to set off to find the third of these.… 

Jack opened his eyes. Sunlight streamed through his window.
    â€œTuesday!”
he whispered. Morgan’s note had told him and Annie to come back to the magic tree house on Tuesday. He could hardly wait to find out where she was sending them today!
    Jack scrambled out of bed. He threw on his clothes. He packed his notebook and pencil into his backpack. Then he headed into the hall.
    Jack bumped into Annie. She was dressed in jeans and a T-shirt.
    â€œTuesday!” they both whispered.
    Together, they hurried down the stairs.
    â€œMom, Dad, we’re going out for a few minutes!” Jack shouted.
    â€œDon’t you want breakfast first?” his dad called from the kitchen.
    â€œWhen we get back!” said Annie.
    They rushed out the front door. They ran down their street in the bright summer sunlight.
    A warm wind gently shook the trees as Jack and Annie headed into the Frog Creek woods. Soon they came to the tallest tree in the woods. The magic tree house waited for them in the high branches. Jack and Annie grabbed the rope ladder and climbed up.
    Inside the shady tree house, the note from Morgan was still on the floor:
    Dear Jack and Annie,
    Camelot is in trouble. To save the kingdom, please find these four special kinds of writing for my library:
    Something to follow
    Something to send
    Something to learn
    Something to lend
    Â Â Â Â Â Â Â Â Â Â Â Â Thank you,
    Â Â Â Â Â Â Â Â Â Â Â Â Morgan
    â€œOkay,” said Jack. “We have the first writing:
something to follow
.” He picked up a list from the Civil War.
    â€œAnd we have the second,” said Annie,
“something to send.”
She picked up a letter from the Revolutionary War.
    â€œNow we need the third,” said Jack,
“something to learn.”
    â€œNo problem,” said Annie. She grabbed a book lying in the corner. “I hope we’re not going to another war.”
    Jack and Annie looked at the cover. It showed a field of tall green grass.
    The title was
Life on the Prairie.
    â€œThe prairie?” said Annie. “We already went to the prairie the time we met Black Hawk.”
    â€œYeah,” said Jack, remembering their adventure with the Native American boy.
    He opened the book and turned to a picture of an old-fashioned train crossing the prairie.
    â€œOh,” he said. “I get it. Trains crossed the prairie
after
the pioneers came. When we went to the prairie before, Native Americans were the
only
people who lived there.”
    â€œSo we must be going to pioneer time,” said Annie.
    â€œI think so,” said Jack.
    He pointed at the picture that showed the train crossing the prairie.
    â€œI wish we could go there,” he said.
    The breeze picked up.
    The wind started to blow.
    The tree house started to spin.
    It spun faster and faster.
    Then everything was still.
    Absolutely still.

Jack opened his eyes.
    He was wearing pants with suspenders and a shirt with the sleeves rolled up. In place of his backpack was a leather bag.
    Annie was wearing a long dress and a sunbonnet.
    â€œI like my hat,” she said. “It’ll keep the sun off my face.”
    â€œYeah, except the sun’s not shining,” said Jack.
    He and Annie looked out the window.
    The sky was cloudy.
    The tree house had landed in a small grove of trees near a creek. Beyond the trees was a