When possible, Lal pulls aside the Vizier and Salahuddin for a few quiet words.
"Derafsh tells me that the deposed Sultan is still alive, many decades late, and that he is still a "guest" in a monastery. Despite this, his brother Nimar still follows him, although Derafsh doesn't know why. Could it be that the Sultan is still puling strings, influencing events?"
"... of course, it is not impossible that Derash is lying about Nimar's allegiances so that we solve his familial problem for him."
As far as the issue of the tomb goes, Lal will say this:
"It is in poor taste for the living to disturb the dead. Some would say, however, that it almost as in poor taste for the dead to take treasure with them to the grave, treasure they probably can't use anyway. Almost... but not quite."