read online Audiobooks Tree House Mystery (Box Car Kids Graphic Novel)Author Mike Dubisch Gertrude Chandler Warner –

The Aldens Have New Neighbors, And They Re Helping Them Build A Tree House From Up High They Can See Things They Hadn T Seen Before There S A Strange Round Window On The House Next Door That S Been Hidden By Trees But Nobody Can Find The Window From Inside The Attic Does Their Neighbor S Old House Have A Secret