There has to be a way, she thought darkly.

There really should be a law against such prophecies, I thought darkly.

They've had more than enough time to plan this, he thought darkly.

It was all to do with that first marriage of hers, he thought darkly.

The Elfstones, she thought darkly, had nothing to do with her.

Max thought darkly that he had tried to warn her.

He must be very tricky to deal with, she thought darkly.

It would also help matters if they didn't bring most of their problems on themselves, Ben thought darkly.

So that was what old age could be like, he thought darkly.