Shhwonk Fortress
Shhwonk Fortress is a fortress in Paper Mario: The Thousand-Year Door where the Moon Stone and the Sun Stone are kept. It's past Petalburg and a few smaller stone fortresses. The Stone Keys are used to open the pipe to Hooktail Castle.
Long ago, Shhwonk Fortress was a place of relief from monster invasions for Petalburgers. Past this, however, monsters invaded the fortress, and traversing to them was actually outlawed without permission from Mayor Kroop. It is unknown when the fortress was built, but at least one of the fortresses located in the path to it is estimated by Goombella to be about a thousand years old.
Before Mario was allowed entrance, he had to participate in a quiz show with a Thwomp. After passing the quiz, Mario was allowed entrance into the Fortress, which was teeming with Fuzzies. After collecting the Sun and Moon Stones, Mario had to fight a Gold Fuzzy in order to get out.
It is possible that Shhwonk Fortress is named after the similar-sounding Whomp's Fortress, a Whomp-filled mountain area Mario explored during the events of Super Mario 64. Shhwonk Fortress may also be named after its Thwomp guardian; both "Thwomp!" and "Shhwonk!" are onomatopoeia for the same thing (an object crashing into the ground from above).
