Charlie Brown is initially awakened and interrogated by Snoopy regarding the missing nest, which he denies taking. Later, he realizes Sally accidentally used Woodstock's nest for her science project and proposes consulting Lucy to mediate the ownership dispute, playing a crucial role in resolving the conflict.
Snoopy questions Charlie Brown as a potential suspect.
Sally and Charlie Brown are siblings who interact over the dispute.
Charlie Brown seeks Lucy's help to mediate the conflict.
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