Two stories: one featuring a great detective in search of a missing pearl, one with a famous ghost chaser tracking down a mischievous ghost.
- ISBN10 0670172847
- ISBN13 9780670172849
- Publish Date 17 March 1980
- Publish Status Temporarily Withdrawn
- Out of Print 1 December 2016
- Publish Country US
- Imprint Viking Books for Young Readers
- Format Hardcover
- Language English