Squall looks through his notebook, or at least he appears to be. in reality, he's watching his companions to see what they do. I can tell Sharlin would tell all of us about the items in the cave. I don't know about Winter though. He seems like too much of a wild card. The logical guess would be to send Sharlin, and Winter seems rather attached to Sharlin. I can use this to my advantage later. Winter is likely to do what Sharlin does, so they would call out what they find and I can figure out what's in the cave at no risk to myself...
@J. Magi