Timeline

Sigred dies

First contact with the Gronks

Humans something Gronks.

Gronks declare war

Gronks on the road to victory

[this is a sketch. i don't know if it's right and I don't know if it helps. And not all of it is even canon. but I'm gonna write it down cause it is one option.]

• Humans learn of Nomalis, a miraculous life-giving planet (potentially they learn this from the Tome, which at some point here is in the hands of the LPC.)
• Humans, aided perhaps by Sigred and Tamnayal, travel to Nomalis.
• Tamnayal is, if not in contact with, presumably aware of the Gronks because of her psionic abilities, but choses to tell no one.
• Humans find that Nomalis is inhabited by the Gronks, who attack the human ships, killing Sigred.
• The humans fight back, initially gaining the upper hand and gaining some control over parts of Nomalis.
• Dundra, a Gronk warrior, engages in battle with the human forces.
• The Gronks rally and push back against human occupation, leveling the playing field and then turning the tables completely.
• A young Kallisto's parents are killed, but Kallisto, presumably in home or ship wreckage, is taken in by the Gronks.
• The humans retreat (?), speeding back to Earth at near light speed. On Nomalis, the Gronks begin receiving strange visions from Salvador, the Earth's sun, calling them to come and harvest it (? must confirm). Kallisto ages and assimilates into Gronk society, and takes on an important role in the eventual pursuit.
• Tamnayal, with very little relative time having past, arrives back on earth

[ WAIT I HAVEN'T YET WRAPPED MY MIND around how the Gronk pursuit would work. How many years after would they actually arrive, etc ]

• Officials of Earth and the LPC recognize Tamnayal's talents and enlist her to help fight back against an impending (or present) Gronk invasion. They give her an apprentice, Emile, to train in her stead, hoping he will surpass her skills.
• Tamnayal begins to train Emile.