They took off. A few hours later, they were finally in Brasilia.
"Now where are we, genius?" asked Chase.
"We're in Brasilia," said Michael, "but how are we gonna find Zoey? She could be anywhere."
"We can use this," said Chase as he showed Michael a keyboard.
"A keyboard?" asked Michael, looking confused.
"This isn't just a keyboard, Michael," said Chase, "it's a human tracker. It's one of Quinn's quinnventions."
"How does it work?" asked Michael.
"Well, you just punch in the name of the person that you want to find and then press enter," said Chase as he typed the name 'Zoey Ann Brooks,' and then pressed enter.
Just then, the tracker started to beep and dragged Chase to the left.
"Hey," said Michael, "wait for me."
An hour later, Chase and Michael were getting tired. But the tracker was still beeping.
"Chase, we've been following that tracker for an hour," said Michael, "let's face it. We'll never find Zoey."
"Wait a minute," said Chase as the tracker beeped like crazy, "the tracker says that this is the place where Zoey is."
They saw a door.
"A door in the middle of a tree?" asked Michael.
"Well, let's find Zoey," said Chase as he opened the door.
Then, he and Michael saw some stairs.
"Come on," said Chase.
They went down the stairs.
A few minutes later, it was getting very cold.
"It's getting cold," said Chase, "Zoey must be freezing."
"Good thing I packed our sweatshirts," said Michael as he got two sweatshirts.
He gave Chase a pair.
"And it's getting dark," said Chase.
"Here's a lantern," said Michael as he found a lantern and gave it to Chase.
"Thanks," said Chase.
When they finally got to the last stair, they saw another door. Chase tried to open it, but it was locked.
"It's locked," said Chase.
"Oh, well," said Michael, "let's go home."
"Wait," said Chase as he held Michael's sleeve, "I have an idea. I learned this trick when I was a kid."
He took out a hairpin and unlocked the door.
"You go alone," said Michael, "I'll stay here and keep watch."
"Good idea," said Chase.