Elderly mushroom hunter Edna Morton has a health problem. She's sprouted feathers. A trip to her health clinic brings her to the attention of an aggressive and ambitious physician, Dr. Theodora Band.

Is there something in the local mushrooms that activates DNA? Why now? Why Edna?

Edna knows which mushrooms could put an end to Dr. Band, but she'd rather look at her family history to see if this has happened before. Could those stories of witches and toadstools be aspects of evolutionary development?

There's no time to dawdle. Edna's family is at risk of sprouting...