The 39-Storey Treehouse by Andy Griffiths & Terry Denton

The only 10 year old's in Australia NOT getting The 39-Storey Treehouse for Christmas this year are the ones who've already raced out during the last month or so to buy it because they just couldn't wait!

Each year, Griffiths and Denton add another 13 stories onto their treehouse series. (To find out about the first book - The 13-Storey Treehouse click here.)

The new and improved treehouse now includes a trampoline with no net, a chocolate waterfall, a non-erupting volcano (for toasting marshmallows of course!), a boxing elephant called The Trunkinator, a not-very-merry-go-round, the world's scariest rollercoaster and a high tech office with jet-propelled swivel chairs just to name a few!!

The usual madcap adventures follow when they invent a machine that is supposed to help them write their next book.

The once-upon-a-time machine ends up taking over - they not only lose creative control, but they also get locked out of the treehouse.

The story ends with a moral, a few corny jokes and the promise of a 52-Storey Treehouse September next year.

To make the summer complete for Treehouse fans, the Sydney Opera House is hosting the return season of the 13 Storey Treehouse in its Playhouse theatre.