Natapon (tetracarboxylic)

Lasher, Paul realized, was the only one who hadn't lost touch with reality. He, alone of the four leaders, seemed unshocked by the course of events, undisturbed by them, even, inexplicably, at peace. Paul, perhaps, had been the one most out of touch, having had little time for reflection, having been so eager to join a large, confident organization with seeming answers to the problems that had made him sorry to be alive.