[Though Liem does follow Howl through the aisle as the other man starts toward the box in question, he’s not sure if he actually intends to help him or to hinder him. On one hand, he does want to secure the dreamer shard in his possession. He may not know what use doing so will have, but it seems neglectful and possibly even risky to leave it unclaimed.

On the other hand…]

We can’t access it now, [he points out.] It’s the middle of the day. Even a priest unlocking the box at this hour would look suspicious.

[Especially considering Howl isn’t even from this city and Liem is an inquisitor of the church, not one of its priests. Any clergy member who saw them would immediately know they shouldn’t be touching the box or its contents.]