Your mission

Felix the fox has found an old temple deep in the jungle, and its stone door is sealed five ways. The builders left no key. They left puzzles carved into the walls, because they wanted the door to open only for people who think. Read every carving. Each one is a clue.

How to crack a lock

  • Pick any lock from the menu at the top. You can solve them in any order.
  • Read every clue before you start. One clue alone is never enough.
  • Use scratch paper. Draw pictures, make lists, and cross things out.
  • Tap the buttons to build your answer. Then press "Try the lock".
  • A lock will not tell you which part is wrong, so be sure before you try.

My badges

Teacher note

Teachers: type the password to see the answer key.