| 100% | MYANTONIA | 9 | Final book in Willa Cather's "prairie trilogy" |
| 66% | MYANTONIA | 9 | Final work of Willa Cather's "Prairie Trilogy" |
| 58% | OPIONEERS | 9 | First novel in Willa Cather's Great Plains trilogy |
| 54% | ALLEGIANT | 9 | Final book in the Divergent trilogy |
| 48% | KING | 4 | "The Return of the ___," final book in "The Lord of the Rings" trilogy |
| 47% | OPIONEERS | 9 | Start of Willa Cather's Great Plains trilogy |
| 45% | OPIONEERS | 9 | First novel in Cather's "prairie trilogy" |
| 43% | JOS | 3 | "___ Boys" (the final book in Louisa May Alcott's "Little Women" series) |
| 41% | OMERTA | 6 | Last book in Puzo's "Godfather" trilogy |
| 41% | MYANTONIA | 9 | Willa Cather book |
| 41% | ZEBRA | 5 | Final image in a preschooler's book, maybe |
| 39% | OPIONEERS | 9 | First novel in Cather's "Great Plains" trilogy |
| 39% | WHOWONTHEWAR | 12 | Final book in Phyllis Reynolds Naylor's series about two feuding families, the Hartfords and the Malloys (4 wds.) |
| 39% | MYANTONIA | 9 | Final novel in 29-Across's Great Plains trilogy (2 wds.) |
| 38% | DEFIANT | 7 | Final book in the 10-Across series by 24-Across/40-Across |
| 36% | ALLEGIANT | 9 | Third book in a trilogy by Veronica Roth |
| 36% | INSURGENT | 9 | Second book in a trilogy by Veronica Roth |
| 36% | DIVERGENT | 9 | First book in a trilogy by Veronica Roth |
| 36% | ANTONIA | 7 | Willa Cather's "My ___" |
| 36% | ANTONIA | 7 | Willa Cather's "My —" |
| 36% | ALOST | 5 | Willa Cather’s “___ Lady” |
| 36% | ANTONIA | 7 | Willa Cather's My ___ |
| 36% | EGYPT | 5 | Final word in the Book of Genesis |
| 36% | OURS | 4 | Willa Cather's "One of ____" |
| 36% | OURS | 4 | Willa Cather's "One of _____" |
| 36% | OURS | 4 | Willa Cather's "One of___" |
| 36% | OURS | 4 | Willa Cather's "One of ___" |
| 36% | OURS | 4 | Willa Cather’s “One of ___” |
| 35% | ALISMITH | 8 | Author whose novel “Summer” is the final book in her Seasonal Quartet (August, 2020) |
| 34% | TWO | 3 | "The ___ Towers," second book in "The Lord of the Rings" trilogy |