Stella Solves the Puzzle

You begin to tell Dr. Lydell what you think made the victims sick, but then Stella interrupts.

"I don't think that's right," she says slowly, wiping at her eye. "I think it's in the milk."

In proof, she holds out her hand. Her fingertips are bright red with blood.

Continue with mystery

An Access Excellence Science Mystery sponsored by Genentech, Inc.