The Room of Doors

You touch one of the runes, and quickly recoil when it lights up. No traps appear to have been triggered, fortunately.

You decide to take a clue from the page and touch all of the prime numbers on the column.

Each one lights up in turn, and when the last one is lit, there's a faint rumbling sound. The sigil on the North door is now glowing magenta.

The numbers cease glowing after a few seconds have passed.

Awesome. Next Chapter: Column (magic 0) Estimated time remaining: 36 Minutes