You were Mellow's 'Guadian Angel'- essentially you watched over the boy and made sure to keep him out of danger. He couldn't see you, but he still felt your presence. Today, he'd snuck into the kitchen for some reason, until he went and hid inside the cupboard

Henry walked inside, the burlap cloak dragging on the floor as he moved. He looked around, before looking right at you- despite you being non visible

Hey, you.

Yeah, you.

Where's the boy hiding?

Point at it for me, will ya?