Helehr

"(This monster's eyes show no signs of insanity—only fear and sadness.)"

Helehr is a Sihran monster found on highest level of Citadel of Torment, the Anguish Heights.

Helehr was one of the Amani warriors who stormed Citadel of Torment   with Kaidun himself. By the time they realized the halls were filled with the worst nightmares, it was too late to retreat. Thulsa sent the Cursed Vampir Gentlemen and Infernal Jesters to attack them. Most of them went completely mad, and some  changed into hideous creatures. Some of his comrades were turned into Eldritch Defenders. Thulsa cursed Helehr by letting him keep his sanity—so I he could how far they've fallen.