Dwarven Hammering Language?

[Avigor]

I swear I once read somewhere that Dwarves had developed a language, like Morse Code, that they could use to talk to each other while mining in different shafts or whatever, but a quick glance through the Dwarf language section and skill section and PrC section (thought it was in a sidebar) of Races of Stone failed to find it, albeit I might've failed a Spot check. Does anyone know where this reference can be found? I'm starting to wonder if it was in some 3rd party material, like Quintessential Dwarf or something.

[KillianHawkeye]

It's definitely something from a third party book or possibly from a different edition of D&D.

[Ashtagon]

Perhaps this is a memory of that 80s TV series of Beauty and the Beast?

[animewatcha]

From a world of warcraft website..

"Grundlid - "Hammertongue:" A secret language known by miners and engineers consisting of numbered and timed taps on a hard surface. Similar to morse-code"

[Avigor]

Thanks, forgot about the WoW RPG books lol

[Avigor]

Ok discovered something else: Hammertalk, from Dragonlance Campaign Setting, page 12. So there is a version from a WotC book after all.