Where is the second place that characters materialize in a wrinkle time?

In Madeleine L'Engle's _A Wrinkle in Time_, the second place that the characters materialize is the planet Uriel.

After leaving their own world through the tesseract, Meg, Charles Wallace, and Calvin arrive on a planet bathed in sunlight and inhabited by three enormous beings – Mrs. Whatsit, Mrs. Who, and Mrs. Which. This is where they begin their journey to rescue Meg's father from the clutches of the evil force known as IT.