Soldat hesitates, but they've come this far. They gave the opal to him to experience, and had expected Sora to know it was theirs. There's nothing different in having to clarify, except it's hard to make the words come out for a moment. Finally they say, "It's mine."

Which means. Sora has another one. They perk up with an almost pathetic eagerness when they see the packet, register the question. "Is that? Is that one-- is it. With the same kids?"