The deeper they went into the Land of the Damned, the more skeletons showed up to attack them. Just like before, the students did not talk with each other, and did not engage in any battle.
Everything was dealt by the two Official Mages, which made Arthur's life easier, as he could walk and focus his attention on the thing that had followed them for a long time.
Arthur did not know if that thing was preparing to attack them, or was just watching. It was not a good feeling to have, and that the two Official Mages had noticed nothing strange meant the shadowy creature was strong, or at least good at stealth.
As no one there was talking with each other, Arthur did not have the chance to share his discoveries with Elena, so even she who was traveling with him did not know something was following them.