No. But you can still burn them.
Valya pauses at the door.
Which future dies.
One: the Sisterhood burns. Two: the Imperium burns. Three: you stop both by giving us the index. dune: prophecy s01e04 msv
Valya realizes the "accident" wasn't an accident—the Guild (or something controlling them) stopped the attack to save the Sisters, or perhaps to steal the weapon for themselves. dune: prophecy s01e04 msv
The Bene Gesserit trained you?