Omar's Halloween /
Maryann Kovalski.
- Markham, Ont. ; Brighton, Mass. : Fitzhenry & Whiteside, c2006.
- 1 v. (unpaged) : col. ill. ; 27 cm.
As Halloween arrives, and Omar still hasn't found a costume scary enough, he is forced to put a sheet over his head and trick-or-treat as a boring old ghost--until the weather comes to his aid.