The answer is tragically.
Because in a summary you should use as <em>few</em> details as possible, and saying tragically horrible is too many details for one sentence.
Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)
Explanation:
The basic form for a book citation is: Last Name, First Name. Title of Book.
Answer:
plz provide the sentence or what this is relating to, so I can help.
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