Mrs. Primm fears Lyle the crocodile is terribly sick, when in reality he's just "green" over Joshua's birthday party.
- ISBN10 039515085X
- ISBN13 9780395150856
- Publish Date 1 December 1995 (first published 1 December 1966)
- Publish Status Out of Print
- Out of Print 14 December 2009
- Publish Country US
- Imprint Houghton Mifflin
- Format Paperback
- Language English