(007) Die drei ???: The Mystery of the Coughing Dragon (American English)

Henry Allen’s dog is missing – and he thinks it’s been eaten by a dragon! On the night the dog disappeared, Mr. Allen swears he saw a huge dragon slither into the sea caves beneath his cliff-top house. Could Mr. Allen really have seen a dragon? The Three Investigators doubt it, but they’re determined to find the missing dog. And that means exploring those dark, dangerous caves …