Starting as a Class Five Mutant - Chapter 570

...

The Ancient One calmly replied, "That promise is only good if you actually can return them."

There was an undeniable distrust in her tone.

Or perhaps—it wasn't distrust in them, but simply that she didn't want to test the bounds of human nature.

After all, who wouldn't be tempted by six Infinity Stones?

If even a single mishap occurred, the Infinity Stones from their universe could end up lost in another.

And if that happened, recovering them would be ...