When Lolth returned to the Pallarmus tribe, she was given an unknown roasted meat for meal.
She ate with the officers as a way to build image and respect just as her mother had proposed to her on one of her recent conversations through telepad.
She didn't really consume any of their meals though. She only pretended to eat, all she did was put the food in her mouth, envelop it with shadow before transferring it to her spatial ring then pretending to chew and swallow.
Even though they had taken an oath she wasn't about to die from poisoning as there are ways to break oaths undetected especially the basic one they used.
The only person that had an inking on what she was doing was Aki but he kept his mouth shut as he was also doing something similar.
After having their meal, Lolth returned to the main house with the original group.