ToME: the Tales of Maj'Eyal

Is it possible to go through Farportal: the Void?
If yes, it need Staff of Absorbtion?
Is there difference if Aeryn survive or not?
Is there something worth to go 4 portals, because i can kill Argoniel in 3 hit a i assume. Arlandar die in two. And i want achievement. )

??, so I investigated this Great Mystery.
You cannot enter those 4 portals, so skip it for the glory of achievement.
But question about Void Farportal is still relevant.
I was going to charge Staff of Absorption to find this out, but accidentally killed last boss, when trying to kill Aeryn.

You cannot go through the Void farportal.

Not yet, anyway...

Thanks!