I will allow him to contact me telepatically, but let him know that any attempt at reading or manipulating my mind would have most regrettable consequences.
I am still considering his second request. I am aware of the importance of your master's task and have no reason for hindering him. In the unlikely possibility that some of my kin has plotted treason against Menzoberranzan it is very much in my own interest to learn the truth. Yet you must understand that our House, like any other House, have secrets we have no wish to give away. Knowledge is power and we will not surrender that lightly.
A Mind Probe is too invasive, and reveals too much that is irrelevant to your master's stated purpose. There are other ways to accomplish what he desires, other spells and powers that can tell truth from lies, or compell someone to speak only the truth. We could arrange to have your master or one of his associates question Krecil under the influence of such magic, in a more private and secure setting. Naturally House Millithor will have a greater force present at that interview than your master or his associates. We will accept only one Illithid to be present if it becomes necessary to Charm Krecil. Your master has sureties against any betrayal from our side, we are aware how foolish such an act would be. We, in turn, need sureties so that the terms of the interview are not violated. That will have to wait until our business in this arena is concluded, of course.
Ultimately my willingness to accept your master's second request depends upon what his third request is.
Dariel's battle is already underway. Time is of the essence, for both of us.