Originally Posted by EdaLee
Elves age too, Halsin is no longer 20 either. He says it himself, he is an old man.
At 20, he certainly didn't look old.

Elves aren't supposed to age until nearly the end of their lives (which Halsin is not at, he's about mid-life for an elf). Could be Ketheric is really, really old, or all that death and resurrection is taking a toll on him (or he's just a half-elf, not a full elf, which seems likely given the beard).