Where is the Crypt?

Hint 1 of 5:

In the Garden Maze.

Hint 2 of 5:

Don't tell me you mapped out the maze and did not find any crypt.

Hint 3 of 5:

That's because it's hidden.

Hint 4 of 5:

Have you climb the family tree?

Hint 5 of 5:

Look at the maze while in the tree.