Frostfound

"Towers and ramps and galleries and stairs of ice, raised and spun like an architect's honey-dream. No spider ever wove so complex a web. The towers are utterly pristine, untouched by human life, but a pitiable encampment squats by the dock."

Frostfound is an ice castle located in the Northwest area of the Unterzee.

I Still Have My Question

Every year the people of Irem and Whither meet here for contests; they are trying to determine the difference between a question and a riddle. Those who prove themselves in the contests can enter the castle, which is sacred ground, but nobody has done so yet...

And what of the Secrets of the Gods?

"Are you quite sure you want to know this?" Beyond this point lie major spoilers for Fallen London, Sunless Sea, Sunless Skies, or Mask of the Rose. This may include endgame or major Fate-locked spoilers. Proceed at your own risk. You can find out more about our spoiler policy here.

The frozen halls of Frostfound.

Any explorer foolhardy enough to enter will likely find their mind slowly degrading as the frozen castle eats their memories and stories. Between the warped halls and deep crevices might lie the secrets of the gods... but let's just say they don't like having their secrets revealed. It's possible that this castle, along with the other, was erected by the Traveller on his way East, but nothing can be known for sure.