Bertie thinks that other kids will like him if he loses weight and so he drinks a special remedy which causes weightlessness, but getting thin requires other measures.
- ISBN10 0688158560
- ISBN13 9780688158569
- Publish Date 23 April 1998 (first published 7 December 1995)
- Publish Status Out of Print
- Out of Print 24 March 2000
- Publish Country US
- Publisher HarperCollins Publishers Inc
- Imprint William Morrow
- Edition New edition
- Format Paperback (B-Format (198x129 mm))
- Pages 112
- Language English