The Plumage Saint

"Vanquish any dispute..." Maggie kept repeating the words of the keeper. 

"Erase all ego..." She rubs the sides of her head as she tries to make sense of the last sentence. 

"It takes a certain level of humility to apologize. Shouldn't that have been enough to get us out?" 

"That was what I thought. Clearly, Pan knew that the maze would turn us against each other." 

It was to be expected since they were devoid of food and water for days.

"These bastards..." Reginald cursed. 

"Why won't they put on a simple trial!? They always have to go on with their cheap tricks." 

Conroy began shaking as a thought popped on his head. 

"Sir Ace said that Ciel's crypt was C-Grade while Pan's crypt is B-Grade. If they were this difficult... What would happen when we enter a higher-grade crypt? Yikes! Thinking about it makes me want to throw up." 

"Vanquish any dispute... Erase all ego." 

What could he possibly mean by erasing all ego?