| 作者 (Author) | Ziefert, Harriet |
| Summary: Nicky's house has an upstairs and a downstairs, and when his mother calls he is nowhere to be found. | |
| 等级 (MML) | MM Level-0.9 |
| 年级 (IL) | Lower Grades (LG K-3) |
| 字数 (Words) | 180 |
| 类型 (Fiction) | Fiction |
| 系列 (Series) | Easy-to-Read: Level 1; Penguin Young Readers: Level 2; |
| Topic: Animals-Cats; Behavior-Disobedience; Family Life-Mothers; | |
