Circular Carving

Stone tablet (15' wide, elaborately carved, giant
skull symbol, glyphs, actually a door), stone floor
(crumbling, geometric patterns, covered in dried
blood), 4 bodies (dead a few days, filled with darts,
bags filled with gemstones worth d100 silver each, one
has a journal about searching for the temple).
▶ Step on a tile in front of the door: Trigger a poison
dart trap (Presence DR14 to spot, Agility DR14 to
dodge or take d6 damage & become poisoned).
▶ Open the door: If glyphs are pressed in the correct
order the door rolls out of the way. To decode it as a
group, one PC may test Presence DR16 after an hour of
study. Lower the DR by 2 for each subsequent attempt.
▶ Smash the door: HP 20, Stone -d6. Very loud!