"I—er—never mind now. I am burning up and must have some water!" roared the dudish pupil, and dashed out of the dormitory in the direction of a water tank located at the end of the hall.

Here he was a little more careful and got the drink he desired. But scarcely had he taken a mouthful when he ejected it with great force.

"Wow! how bitter that tastes!" he gasped. Then of a sudden he commenced to shiver. "Wonder if that salad poisoned me? Who gave it to me, anyhow?"

He tried the water again, but it was just as bitter as before. Then he ran to a bathroom, to try the water there. By this time his mouth and throat felt like fire, and, thoroughly scared, he ran back to his sleeping apartment and began to yell for help.

His cries aroused a good portion of the inmates of Oak Hall, and students came from all directions to see what was the matter. They found poor Nat sitting on a chair, the picture of misery.

"I—I guess I'm poisoned and I'm going to die!" he wailed. "Somebody better get a doctor."

"What did you eat?" demanded half a dozen boys.

"I—er—I ate some salad a fellow brought to me in the dark. I don't know who he was. Oh, my throat! It feels as if a red-hot poker was in it! And I can't drink water either! Oh, I know I am going to die!"

"Try oil—that's good for a burn," suggested one student, and he brought forth some cod liver oil. Nat hated cod liver oil almost as much as poison, but he was scared and took the dose without a murmur. It helped a little, but his throat felt far from comfortable and soon it commenced to burn as much as ever.

By this time Doctor Clay had been aroused and he came to the dormitory in a dressing gown and slippers.