The party searched an old building.
It was an old medical clinic (cosmetic surgery clinic)
It was filled with blue psionic rats and a Blue Psionic Owlbear.
THey killed all but one rat, which they frozse in a cryolab in the clinic.
they also found a recently starved Illithid that the clinic had apparently been extracting fluids and tissues from to create an experimental substance to give creatures psionics.
They also found a buch of “psionic switches” that respond to psionic commands.