How did Charles make the wall open in book A Wrinkle Time?

It's not Charles who makes the wall open in *A Wrinkle in Time*. It's Meg Murry who does it, and she does it by using her love for her brother Charles.

Here's how it happens:

* Meg, Charles, and Calvin are trapped in the dark, oppressive house of the Black Thing, a force of evil.

* Meg is desperate to save Charles from the Black Thing's influence.

* The book explains that love is a powerful force, able to overcome even the darkest evil.

* Meg, fueled by her love for Charles, focuses all her energy on him and on the power of love. This allows her to push through the barrier of darkness and open a path for them to escape.

The wall opening is a powerful symbol of how even in the face of overwhelming darkness, love can find a way through.