In Finn's backyard grew a big oak tree. High in its branches sat an old wooden treehouse. It had been there for a long, long time.
Finn and Ruby were best friends. “Let's make it our own secret club,” said Finn. Up the wooden ladder they climbed.
The Treehouse Club
First they swept out all the old leaves. Then they hung a thick rope by the door. It was starting to feel like a real clubhouse.
Ruby painted a sign in big letters. It said, “CLUBHOUSE — MEMBERS ONLY.” Now their club needed just one more thing: a really good name.
But the two friends could not agree. Finn wanted to call it “The Brave Explorers.” Ruby wanted “The Acorn Club.”
“Mine is better,” said Finn. “No, mine is,” said Ruby. They crossed their arms and turned their backs. Neither one would budge.
Then the sky turned dark and gray. Rain began to fall. It went pitter-patter on the treehouse roof.
Finn and Ruby forgot all about being mad. They huddled close and stayed warm. Finn opened his backpack, and they shared his snacks.
Snug and dry, they listened to the rain drum down. They told funny stories and laughed and laughed. “This is the best club ever,” said Ruby.
Then Finn had an idea. “Let's call it The Rainy-Day Club!” Ruby grinned. At last, the perfect name — and they both loved it.
Soon the rain stopped. The sun peeked out from behind a cloud. A bright rainbow arched high over the yard.
Finn and Ruby leaned out of their little window. They grinned from ear to ear — best friends, in the best club of all.