The ' Thunderstone Door Trap ', a nice mix of doors, traps, and Thunderstones!
It sure looks like a normal doorknob...Wait a second...Did it just move?!
Painted walls and a shadowy figure ... how can these insubstantial elements open that all-too-solid door? A locked-room puzzle with multiple solutions!
In local legend, the Halls are fairly old, with stories of people disappearing going back for hundreds of years, said to be taken by the Faeries. In actuality, the Halls are much older.
The tripwire activated a trap of such ferocity that even the bravest man among us quavered.
Tired of kicking down dugeon doors? This one kicks back.
A tricky-ish puzzle that will work for both low and high level players.
"Private documents need protecting? no problem just get a burn box"
Even as humans can be, the Kel'Regar, too, can be touched by madness, and it can drive them to push to ends incomprehensible by the sane. The work of one such, Kararemi'ar'Salm'Torat, the Menangerie of Mad Creation, is a twisted, living structure, tormented by years of loneliness and incomprehensible need.
"What you wanna go messin' around up in the mountains for? Ain't nothin' up there but snow, and wolves, and more snow.
...
Yer lookin' for the old tomb? Take my advice, boys. Let that tomb alone. There ain't nothin up there you ought be messin' with. No money, no treasure, no fame, just ice. And death."
Remember Harold and his purple crayon?
Darn, this hallway is really long…
"The wind-driven snow parts for the barest of seconds, revealing a glimpse of refuge from the deadly storm. It’s a massive sapphire pyramid. Yet you know of nothing like it in this area…"
Not named for an resident beast, but for the multitude of winding, mazelike passages fraught with danger.
The party has obtained a treasure map, and it seems pretty straightforward… but digging in the indicated area for hours has revealed nothing…
Beware of food that isn’t yours for the taking.

The heroes storm the Temple of R’gu, the God From The Stars, to steal the Ruby of the Winged Master
The classical Crossbow Door trap