You flip the story. Now the Zho is hunting the party.
Maybe there are side effects to the telepathy that only show up in trained psions. Like 'always on' so they get no sleep and eventually go mad and die, unless they are millions of miles away from other minds. Something that didn't show up in the initial testing.
The Zho is now trying to get the prof back for any insights into the problem. That is, before the Zho goes mad and/or dies from lack of sleep.
As the above. The Zho are going to want the professor. Badly. Roll 1D:
1. The Zho singlemindedly tries to capture the professor, with no thought to guile or stealth.
2. The Zho aligns several competing goals up in order to capture the professor as well as get some other important things done (?).
3. The Zho sends for help to retrieve the professor.
4. The Zho first seeks out (medical?) help before going after the party.
5. The Zho has gone insane, and merely seeks to kill the professor.
6. As #5, but he also seeks to kill the players.
A PC died? Is the player disappointed? Because there are ways to bring them back. Ways that can introduce their own plot complications. A "life insurance" policy that activates when the character's death is received by the holding institute. The most recent "backup" of the character is decanted and sent to replace the expired one. Roll 1D:
1. All goes according to plan, and the character basically comes back into the game as-is.
2. As #1, except the character is 1 term younger and loses skill levels (player's choice).
3. As #1, except the character's skillset is lightly scrambled, with one skill (choose) swapped for a different skill (choose).
4. As #1, except (REFEREE ONLY) the character has been implanted with psychological suggestions by enemies (who?) to "report periodically" to an anonymous xmail account.
5. As #1, except the character has one point moved from one characteristic to another (choose from Str, Dex, End, Int).
6. As #1, except the character's SOC is reduced by two due to being "just another clone". If SOC is less than 5, the character is referred to as "just another stinking clone".