Why does he feel that there might be no one in this house? 'Cause he wasn't hearing any sounds, no conversations...it was the same when he was in his room.
But there'd most likely be people in this house...his mum, Hazel, and Lydia couldn't have disappeared into thin air? He kept walking until he reached the living room, but as said, he wouldn't carelessly walk into the living room.
He stood close to a wall and peeped into the living room, and his mum was sitting on a certain chair in it. Hazel would most likely be in her room, and that should be the same case for Lydia as well.
..His mum was in the living room...mission spoilt in the meantime.
As far as his mum was there, he wouldn't be able to go out of the house.
'What would I do now? And I don't even know when she plans on leaving the living room...even if it was for some time'. Aiden thought to himself.