On tour of the National Aquarium in Baltimore, Nancy Drew is asked to look into a series of threats against the staff.
- ISBN10 067173072X
- ISBN13 9780671730727
- Publish Date 1 February 1992 (first published 1 January 1992)
- Publish Status Active
- Publish Country US
- Publisher Simon & Schuster
- Imprint Simon Pulse
- Format Paperback (US Mass Market)
- Pages 153
- Language English