Regarding the matter of Anada, Angel had brushed it aside upon leaving Shepherd City. For one, he had not recognized Anada, and secondly, even if he had, it probably wouldn't have made much of a reaction.
After leaving Shepherd City, they flew towards the direction of the Pamiji Plateau.
Along the way, Sanders did not bring up the 'surprise' of the previous night but instead mentioned some matters that Angel must pay attention to.
"Once we return to Barbarian Cave and have finished our business, we had better leave at once, otherwise, if we stay too long, Frostmoon's people will definitely come."
It was quite possible that Frostmoon's people were not coming for Angel but for Popota's business. But it's always good to have a contingency plan; Angel's survival from what everyone considered a 'certain death' event would definitely catch their attention.
That's why Sanders mentioned this.
"Then, when we go back, should I hide myself?"