Ancient Riddle Challenge

I lie

But my brothers do not

I am sick and dying

But they are well and nourished

Soon they will lie as well

To steal the food they need but won’t find

And we will be chased by long-necked monsters with teeth

And be trapped together in the dark

Or burned to ash

Or used alongside our friends

As our family reunites with us

What time is it?

 

(There are no hints or answers available for the A.R.C.  I sincerely regret any frustration I may cause. If you come to an answer, contact me or share in the comments below, and I’ll let you know if you guessed correctly.)