Dragons of Summer Flame is a 1995 fantasy novel by American writers Margaret Weis and Tracy Hickman.
[4] After a battle, the Nightlord Steel Brightblade finds Palin Majere, nephew of the famed mage Raistlin.
This fearful encounter causes the Irda to believe that another invasion will come, and convinces them to break open a magical item known as the Greygem of Gargath.
So they decided to send her away, giving her a message to deliver to Lord Dalamar, master of the Tower of High Sorcery in Palanthas.
That in combination with TSR's change in the accompanying game rules "ended up splitting Dragonlance fandom", according to Weis.