The Wayfarer's Inn

"Sol, could you perhaps check the north slab too?"
Does Kherim feel any evil coming from beyond the slabs?

"Sure" Sol goes to the other slab and casts a detect magic spell on that, too.

Ahi asks around
"So, I guess no one would object if we tried to open these slabs, would you?"

There's magic on the green slab too.

Sol replies "This one is magic, too. Go for it, Ahi." as he prepares for what ever might happen...

"I can't open it through magic means", Ahi says. "I'm sure Neith would not grant me again the favour to shed this magic away. But perhaps we can do it with more mundane means."

"Perhpas Eilkhan could check it first for traps, then?", Kherim suggests.

"No problem there." The rogue walks over and begins verifying for nasty surprises and booby traps.

The thief examines both stone slabs carefully but finds nothing that hints at a trap.

"I don't see or find anything. That of course doesn't mean there aren't any."

"Very well then", Kherim says. Then he advances to the westernmost slab and begins looking for signs of a door, touching the wall if needed, knocking for hollow spots and even scraping if he notices any sign of a depression on the wall.