I recall the shop used to have a revival item. It's not there now, and given you now have a second character, this is odd. Unless it's in a secondary shop.
EDIT: Oh, I see. The companion can perma-die(Gets turned, cannot be restored, can't get a new one). That's a shame. EDIT2: Wrong again. She gets dumped in the death area and can be rescued after a fight with her. Then you drag her back to town and the hospital will respawn her....at Level 1 with her starting Hand Axe. If she had anything else on her on her death, it will be gone. Given the game is stingy with money, this can be horrible.
I don't see why your greater stat boost items in the 'Imp Nest' shop don't say how much you get off them. On the other hand, YAY MAX HP BOOST ITEM! NOW YOU AREN'T FORCED TO SPEND EVERYTHING IN HP!(Though you probably should anyway, really, with the sheer amounts of damage flying around later you want the extra.)