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The Hardy Boys: The Hidden Theft Hints
How can I open Dougal's lockbox?
1 of 7: You're going to need a certain key to unlock it.
2 of 7: Try to work out who might have had that key.
3 of 7: It was originally Richard Llewellyn's.
4 of 7: But he gave it to Mary, who then passed it on to her daughter.
