What did Mrs. Whatsit say to Meg to comfort her about her father?

In the
novel , Mrs. Whatsit tells Meg not to despair. She wouldn't have brought
Meg, her brother, and Calvin through the travel in time if there was no hope of saving her
father. At this point, they have already traveled to the planet Uriel so the children could get
a glimpse of the Dark Side and understand evil.

Meg and Charles...