Clark wasn't totally stupid, not even when he was freaking out about a friend. He stopped outside the LuthorCorp fertilizer plant and studied it carefully. It was Saturday, and the place was empty but for the usual complement of bored-looking security guards.
At least, he thought it was empty. He x-rayed the large building as best he could, and realized there was a small, lead-lined room.
Lead-lined rooms made him nervous. Not only could he not see through lead, so he had no way of knowing what was inside, but they also tended to be used for refining the only radioactive substance that was locally common, meteor rocks. And meteor rocks were something he endeavored to avoid at all costs.
He wasn't literally allergic to kryptonite, although if Chloe was to be believed about the prophy-whatever-she-called-it shock, prolonged exposure to it caused him to react much as humans would to an allergy. But the radiation made him very, very ill. He'd already had one run-in with kryptonite today, and didn't much care to have another.
He zipped into superspeed and whooshed into the building, examining every nook and cranny. At last he concluded this was a dead end.
Unless there was something in that lead room.
He really didn't have a choice. Even though every instinct in his body screamed that this was a trap, he couldn't afford to leave any stone unturned. Pete was missing, and he had to find him.
Gritting his teeth, he whooshed over to the lead-lined room... and opened the door.