Dan didn't reply out loud, but the lockbox strengthened as he nodded. It slipped in behind Luke's ghost, the lid opening as it did so. The ghost didn't seem to notice, which suited Dan just fine. He tilted his head very slightly, and then shoved hard. The bowler hat ghost didn't react at first, still hovering as it moved back, but then the cane lowered down and touched the ground. The ghost stopped moving.
The box was wide open now, and Dan pushed even harder, but the cane was acting like an anchor. "Fucking cane," Dan muttered, and swiped at it with a gesture of his hand, dislodging it from the floor. Another shove, and the ghost was almost inside the box. Then it reacted, grabbing at the edges of the box and trying to wedge itself in place with the cane and a foot. And it howled, a noise that started like a whimper or a moan, and only got louder. But it was going to go in the box. The edges became slick for a moment - Dan was in control of the box, so he could do as he wished with it, after all - and the ghost found no way of stopping that as it slammed into the inside of the box.
The lid slammed shut and the lock clicked closed, and Dan shut his eyes as he put the box away in the far-off reaches of his mind. He checked the lockbox for cracks or defects, but so far it was holding up well. The howling continued, but much like the screaming from Mrs Massey or the swearing from Horace Derwent, it would soon quieten down.
"Do you Shine, Luke?" Dan asked, after opening his eyes again and taking a moment to just breathe. "He's not my ghost so I don't know if that'll affect things or not. But if you Shine, I could maybe teach you to do that."