The Grell Mystery
| MPAA Rating: | NR |
| Genre: | Mystery |
| Country: | United States |
| Directed By: | Paul Scardon |
| Written By: | C. Graham Baker, Frank Froest |
| Cast: | Earle Williams, Jean Dumar, Mabel Trunnelle, Frank Crayne, Robert Gaillard, Denton Vane, Bernard Siegel, Miriam Miles |
| In Theaters: | Nov 19, 1917 |
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