"You should write it," Gonou says quietly; his hand doesn't pause in the gentle rhythm over Jedao's hair, this time. "And then you should put it away somewhere. And when Mr. Flint's found his way to graduation, and you can bring them all back, you should look at the letter again, and decide if you want to send it or just set it on fire."

Setting it on fire is the only real choice, and Gonou's sure Jedao knows that even better than he does himself. If he's taking himself out of Dhanneth's life, because there's no way to leave Dhanneth with those memories without also leaving him with the pain he'd shot himself to escape, then -- a letter will only make the man pull at the loose strings until all of Jedao's work saving them falls apart.

But writing a letter, even if it can't ever be delivered, might help.