I've always heard there are some great easter eggs in the dark fall games. I seem to remember one interview where the creator Jonathan Boakes hinted that there was an entire secret area in Lights Out that no one had found yet, but I've never been able to find anything more about it.

Because it isn't the most widely-known franchise on the planet, there aren't any places with a definitive list of series easter eggs, so I thought I'd ask here if anyone knew any easter eggs from the 3 DF games?
(Feel free to include Lost Crown and Barrow Hill if you want as well even though they're not on GOG.

My favorite easter eggs of the entire series are when they reference the other games. Like Polly and Nigel from the first Dark Fall both have their own games. Andrew Verney from The Journal is mentioned in Lights Out, and the Barrow Hill radio has a commercial for Celtic Corner that shows up in The Lost Crown.

I just really love that it feels like all of the games take place in the same world with the same references. :)

What about Timothy Pike's Book in the gift shop in DF2 referring to the ghost boy from DF1?

And then in DF1, there's a message on the left wall of the Waiting Room saying, "map man thinks He can change things, He will Fail brick by brick by brick" which seems to refer to Benjamin Parker (DF2) either foreshadowing DF2 or was this an "oops" moment where work was being done one both and the message was misplaced.

**Edit fixed "map man"