Updates

[Saturday, December 18 at 12:30 AM UTC] Global hint for Prepuzzle: Where's Waldo?: Try searching for the first book in the series (Wikipedia has it under Where's Wally?).
[Saturday, December 18 at 07:50 AM UTC] Erratum in Under the Shade: A word in the clue enumerated 28 was changed.
[Saturday, December 18 at 09:40 AM UTC] Erratum in Internet Café: A typo in the fourth line of dialogue of the second section has been corrected.
[Saturday, December 18 at 05:30 PM UTC] Erratum in Animal Show: The third character in the rightmost column was changed.
[Saturday, December 18 at 05:30 PM UTC] Erratum in Chess Shop: The sixteenth grid under Win in 3 moves was modified.
[Sunday, December 19 at 02:10 AM UTC] Erratum in Jetty Creatures: Images 9 and 10 were swapped.
[Monday, December 20 at 03:00 AM UTC] Erratum in Shallow Waters: A typo was corrected in the first bullet point.
[Monday, December 20 at 03:00 AM UTC] Erratum in Chess Shop: The thirteenth grid under Win in 3 moves was modified.
[Wednesday, December 22 at 4:50 PM UTC] Erratum in Chess Shop: The fifteenth grid under Win in 3 moves was modified.