| THE ETHRIDGE ACRES SERIES | |
| Notes | Titles | 
| Publishing info may be incomplete... Some books may not be part of series, and I may be missing some that are. | MYSTERY OF THE JASPER JEWEL CASE -- 1941, Dodd, Mead. CLUE OF THE CIPHER KEY -- 1942, Dodd, Mead. BLUE SMOKE MYSTERY -- illustrated by Paul Brown. 1943, Dodd, Mead. MYSTERY OF THE HECTIC HOLIDAYS -- 1944, Dodd, Mead. GREEN GARNET MYSTERY -- 1946, Dodd, Mead. MYSTERY OF HORSESHOE CAVES -- 1948, Dodd, Mead. TREASURE BOX MYSTERY -- 1951, Dodd, Mead. | 
| Source: WorldCat Holdings |