"And how long will this time of peace last?"
Her smile dimmed, remembered vision roaring in her ears. There would be peace for a time, yes, and joy as well, but it wouldn't last. She couldn't be sure how far in the future it was, the years of happiness blending together, but it was unfortunately certain.
First, her own death. She hadn't Seen the specifics, only the truth of it, and the aftermath: Mathayus, gone mad with grief, initiating an insane campaign of conquest second only to Memnon's in its ferocity. Only the fact that he was defeated, albeit after seven bloody years, saved him from surpassing his predecessor.
After, she had been certain she would watch him waste away in the desert, but fate was far crueler in its designs. Instead, she was forced to watch, horrified, as her beloved sold his very soul for victory.
The slaughter that followed did not bear thinking about, after which Anubis took what was his.
Cassandra had hoped futilely that it might end there, but such was not to be. She Saw, thousands of years forward, the thing her husband and king had been turned into by the dark god, and that was finally enough to bring her screaming back to reality.
When death parted them, it would be forever.
She wanted, ached with the need to tell him, but it would do no good. It would do nothing besides poison their remaining time together, and she could not bear that, not with everything she now knew. And it was the future, and might yet change, though she had little hope of it doing so.
Realizing he was still waiting for an answer, she tried to smile as she gave him the only reassurance she had, poor as it may be.
"Nothing lasts forever."