he even participated in this war (he was a general on one side... or perhaps the echoes of the war simply affected him... but he wasn't at the epicenter, otherwise he wouldn't have survived), and the final mission could be about how he ended up on Axeoth and met Verzak.
how he led the Conflux Castle into war, trying to stop Kilgor, or perhaps saving the inhabitants of Erathia after the Reckoning, although we've already seen something similar.
and he decided to seek help from the Necromancers... so that they could, let's say, put his body and soul to rest (in general, help him in any way they could)... but they decided to study him (by deception), and he eventually found out about this, and then the Necromancers were in trouble.
to achieve this, Tarnum will have to seize power in Deyr, where there is currently no king, and then fight against Archibald's armies, which are moving through an underground passage, and in the end, Tarnum will realize that Archibald has been leading him on.
and would he have fallen for the Necromancers' bait? after all, this isn't just any Queen Isabel...
thank you for developing the ideas, let's continue to develop them further