Questions and Answers
What did Charley find in the envelope among his stamp collection?
A letter from his friend Sam
Where was the letter addressed to?
Galesburg, Illinois
What did Charley learn from the letter about Sam's discovery?
Sam found the third level and went to Galesburg in the 1890s
What conclusion could be drawn about Charley after finding the letter?
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What additional information did the letter contain besides Sam's discovery?
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