She had to have his attention, or the spell wouldn't work.

If the spell really works, what difference does it make?

There was but one time of the year when she could be sure the spell would work.

If she didn't even see Jack, her spell would never work.

If the spell works, and I live, all is well.

The spell doesn't work until dark, but we can't take the chance they'll keep them alive.

But I just can't make the spells work the way they're supposed to.

It's always nice to know when your spells are working.

Could the spell have worked before I had even completed it?

When the spell wasn't working, his lines began to sound silly.