Kinds Of Telepathy

Dominic Flandry's antagonist, Aycharaych, is a universal telepath, i.e., he instantly detects and understands the conscious thoughts of any being of any species physically close to him, even if he has never encountered that species, let alone that individual, before. I would have argued that the understanding was impossible but we have had some discussion of this question on the blog. However, that is all that Aycharaych does. Other psychic powers, like psychokinesis and precognition, are hypothesized but he does not possess any of those. And he is not what Alfred Bester called a telesend, i.e., he cannot transmit thoughts to others.

This observation arises because some kinds of telepaths can do this:

just before dying, Spock transfers all of his memories, including his sense of identity, into McCoy (fortunately, Spock's body is physically revived and the memories can be put back into it);

at the moment of his death, Julian May's comatose villain, Victor Remillard, induces schizophrenia in his well-meaning brother, Denis - thus, Denis' usually unconscious secondary personality now has Victor's malign motivations.

We do not know whether Aycharaych physically survived the bombardment of his home planet, Chereion but, even if he did, he no longer had any reason to work for Merseia. Also, his survival would have been merely physical. We have no reason to think that he would have been able to perpetuate his memories like Spock or his motivations like Victor Remillard.