Obtain 4 Time-Worn Breastplates and 4 Rusted Swords.
As you turn around, you see the silhouettes of shambling skeletons on the stairs.
The undead aren't gone from this crypt. They were lying in wait! Furthermore, they appear to be armed with the weapons that you came looking for.
You'll have to escape from the crypt. On your way out, you should gather as many pieces of equipment as you can.