Skyrim is a game that's absolutely resplendent with easter eggs and other hidden bits of content that is otherwise only accessible by players with a keen eye and an interest in clicking on just about every point of interest a cave has to offer–guano and all. Intrepid players will be very often rewarded by their persistence.
That said, not every easter egg is possible to find–at least not without a little help from the console, which is only accessible (sadly) on the PC version of the game.
A player noticed that the first dungeon–Bleak Falls Barrow–had some gibs on the ground. He wondered where they came from and looked above.
There was something up on the ledge, accessible only through the noclip cheat.
A severed rappel rope.
There is a corpse on the ledge.
Behold: Thomas.
Thomas has a note on his corpse. Let's read it.
The corpse appears only to be accessible with the use of noclip. One wonders how Bethesda expected players to find it.