Willow Grove
Willow Grove is an amusement park on Earth that Peter remembers visiting.
First named in Jack Pumpkinhead of Oz, ch. 13
Just as Snif said, they were mirrors, and remembering how he had often laughed at his distorted reflection in the mirror maze at Willow Grove, Peter began to laugh now.
Where this is
placed In our world worked out
read out of the chapters cited on this page, not stated in any one sentence of them
The summary and text describe it as an amusement park on Earth that Peter remembers visiting before ever reaching Oz.
What the books say it is
appearance has a mirror maze 1 chapter
Just as Snif said, they were mirrors, and remembering how he had often laughed at his distorted reflection in the mirror maze at Willow Grove, Peter began to laugh now.
Jack Pumpkinhead of Oz, ch. 13