Potion of Stone Wrap

A Mól potion built on the meld-into-stone pattern, and better than the ordinary version of it. Drink it and stone stops being a barrier: you can step into a wall and through it, for up to an hour. Or you can cut the hour short and spend what is left the other way, drawing a shell of the stone out onto yourself and wearing it: heavy armor, made of whatever you happened to be touching.

The party found three vials in a cubby and identified two of them at Gwenivere’s shop. Aldo, broke and furious at the time already lost, was against spending something that rare on a door. Koa’s vote went the other way, and Mikhail drank it and went through.

The Mól had veined their walls with electrum, and electrum stops the melding dead. Only a plain stone door can be passed at all. It is a deliberate fortress defense, built by people who knew this potion existed. The Haudh-Gwenn bank, they realized, would have been proof against it too.

He put his head through and found a chamber of howling wind, one crystal hanging in it, and his torch gone out.