Grok was the talk of the room for a few minutes as the shocked students tried to adapt to the thought that Christa's Familiar had advanced when she summoned him back after the creature had died.
She had tried everything that she knew to try to bring him back, but it was deemed impossible by the Professors. Her Demon might still be linked to her, but the curse she was under prevented him from being brought back.
Grok was also very protective of his witch, using his short Halberd to keep everyone else away from the table, even while he was happily answering their questions.
Wolfe and Christa both thought it was hilarious that he was so protective of her, but if he had died trying to save her during an ambush in the bus, then the feeling likely lingered, and he would be very slow to trust other Witches this time.