I know a childrens book that has kids with wings but not sure about the tree house bit. James Patterson wrote a series of books about flying children which were aimed at teenagers. The first was The Angel Experiment.
No
With wings just like other insects.
The web address of the Gull Wings Children'S Museum is: http://www.gullwings.org
A very large mansion house has 4 wings.
House of Black Wings - 2010 was released on: USA: 25 May 2010 (video premiere)
Wings - 1990 The Story of Joe 2-2 was released on: USA: 5 October 1990
Icarus tried to fly with wax wings. As he neared the sun his wax wings melted. I couldn't tell you the moral of the story.
Legs and wings
Wings - 1990 House of Blues 8-17 was released on: USA: 5 March 1997
Wings - 1990 This Old House 3-15 was released on: USA: 30 January 1992
the parting
Anonymous Based on the Short Story Crack It Gives You Wings - 2014 was released on: USA: 2014