High Wizardry is the third novel of the Young Wizards series by Diane Duane.

When she uses a worldgate to flee, assisted by an unnamed man she meets in a bar, she finds herself on a giant planet consisting entirely of silicon.

She names them in a variety of ways ranging from computer programs to Star Wars characters.

The Lone Power overshadows a mobile and stirs up animosity against Dairine, convincing a number of them to support him instead.

Nita and Kit arrive in time to help her, assisted by the macaw Machu Picchu (Peach), who reveals herself as the One's Champion incarnate.