“The Planeswalker know YOu take the card from the library And bury it when you're done. On the path, you face history. Walk the path, do the math: Start with the prime numbers under 100 Whose digits give you 10. Choose the happy median. Add it to: The square root of The cube of five divided by The sum of 3 and 2.” HistoryPathMathematicsLibraryMedianPrime NumbersCube Book:The Friendship Riddle Source: The Friendship Riddle