We searched high and low for the note.
"Danny, maybe we got the wrong wall."
"I doubt it. Wait, there's the next note: 'Wrong wall. I hate to ruins your trip.'"
"Surely they mean 'ruin'?"
"No, the n and s are both cut from two separate pieces of paper."
"Well, in that case we need to find the ruins of a famous wall."
"The Berlin wall!" we both chorused.