There was one present left under the Christmas tree, a wooden box with a tag that said 'I open at the close'.
When my daughter turned thirteen, I made a scavenger hunt to her last Christmas present using a Marauder's Map of our house. Use the map to find the clues and discover how to piece them together to find her present.
The Last Christmas Present was created with Inform and has IFID AE305117-E5BA-4A08-80BF-7AAF02737F08. To play a work like this one, you need an interpreter program: many are available, among them Gargoyle
for Mac OS X or Windows; Windows Frotz or Windows Glulxe for Windows.
Or you can play without downloading anything by following the 'Play Online'
link, using the Quixe interpreter. You'll need to have Javascript enabled
on your web browser.