Noticed something on the core set slipcover.

[Belphanior]

On the D&D core set there's a D&D logo on the slipcase. It's like a golden disk, with "D&D" in the centre, and on the outer ring there's the symbols of the gods.

Plus 1.

Yes, I know, there's the secret god Tharizdun in the DMG. I counted him. All in all there's 20 gods, but the ring has 21 symbols. The extra one is on 3 o' clock, looking like three lines like claw marks. A bit like what you find on the cover of the Werewolf the Apocalypse book. It's not Avandra either.

Do we have any idea on what that is about?

 

[gribble]

Do we have any idea on what that is about?

I hadn't noticed - I'll have to check it out...

One thing that immediately comes to mind - maybe it's the symbol of the dead god Io?

 

[rbingham2000]

Io got split into Bahamut and Tiamat, IIRC. My guess is whichever god Asmodeus killed.

 

[Torquin Trebuchet]

That is a cool observation. There is a secret here, waiting to be uncovered.

 

[Alikar]

The Primordals?

 

[Amadeus Windfall]

It seems to be a god they removed late in the process - I noticed that holy symbol when I was looking through the Wizards Presents: Races and Classes gallery yesterday. It was on this shield: http://www.wizards.com/dnd/images/RacesNClasses_Gallery/111133.jpg
It's pretty safe to say it's not the primordials - since this looks like an elf, maybe it's Obad-Hai? He's mentioned in the Design and Development: Elves article.

 

[Otterscrubber]

Nice catch, wonder if it is something to be revealed or something that was missed during an edit.

 

[Vaeron]

If it weren't for the pic of the elf with the shield, I might have conjectured this was the symbol of the unknown human god. I love a good mystery.

 

[On Puget Sound]

Congratulations, you made your Religion check! Now you'll need a Very Hard Diplomacy check to get Customer Service to tell you more about this mysterious deity.

 

[Torchlyte]

Congratulations, you made your Religion check! Now you'll need a Very Hard Diplomacy check to get Customer Service to tell you more about this mysterious deity.

This. Nice catch.