Instructions
Speak to the Minotaur. Volunteer to enter his labyrinth. Jump up and down from one platform to the next until you encounter the bone wall.
Hover your mouse over the wall and click on the wall to select it. You will see the bone puzzle take up the entire screen. The puzzle reads, "Fifteen bones of ancient men. Take back six but still leave ten." Although 15 minus six equals nine, the solution to the puzzle is actually to spell "T E N" with the bones, not leave 10 bones on the wall.
Hover your mouse over the farthest left vertical bone and click on it to remove it.
Select the third-from-left vertical bone and click on it to remove it. Leave that second-from-left vertical bone alone to act as the vertical line in the "T."
Hover your mouse over the leftmost horizontal bone in the bottom row and click on it to delete it. This leaves the complete "T."
Click on the third vertical bone from the right of the screen to delete it. This is the only bone necessary to remove from the middle shape in order to leave the "E."
Select the rightmost horizontal bone in the top row to delete it.
Delete the rightmost horizontal bone in the bottom row. This leaves the "N" at the right of the screen.