- eBookDorothy Dale in the WestMargaret Penrose
- eBookTHE MOTOR GIRLSMargaret Penrose
- eBookThe Motor GirlsMargaret Penrose
- eBookDorothy Dale's Great SecretMargaret Penrose
- eBookThe Motor Girls on Waters Blue; Or, the Strange Cruise of the TartarMargaret Penrose
- eBookDorothy Dale's Camping DaysMargaret Penrose
- eBookDorothy Dale To The RescueMargaret Penrose
- eBookThe Motor Girls on Crystal Bay; or, The Secret of the Red OarMargaret Penrose
- eBookDorothy Dale and Her ChumsMargaret Penrose
- eBookThe Campfire Girls of RoselawnMargaret Penrose
- eBookThe Motor Girls on Crystal Bay; or, The Secret of the Red OarMargaret Penrose
- eBookDorothy Dale's PromiseMargaret Penrose
- eBookDorothy DaleMargaret Penrose
- eBookThe Motor Girls at Lookout Beach; Or, In Quest of the RunawaysMargaret Penrose
- eBookThe Campfire Girls of Roselawn; Or, a Strange Message from the AirMargaret Penrose
- eBookSeri: iBoo ClassicMargaret Penrose
- eBookDorothy Dale's PromiseMargaret Penrose
- eBookDorothy Dale's Great SecretMargaret Penrose
- eBookThe Campfire Girls on Station Island; Or, The Wireless from the Steam YachtMargaret Penrose
- eBookThe Radio Girls at Forest Lodge; or, The Strange Hut in the SwampMargaret Penrose
- eBookDorothy Dale in the CityMargaret Penrose
- eBookDorothy Dale at Glenwood SchoolMargaret Penrose
- eBookThe Motor Girls at Camp Surprise; Or, The Cave in the MountainsMargaret Penrose
- eBookDorothy Dale's Queer HolidaysMargaret Penrose
- eBookThe Motor Girls Through New England; or, Held by the GypsiesMargaret Penrose
- eBookThe Motor Girls on the Coast; or, The Waif From the SeaMargaret Penrose
- eBookThe Motor Girls on a TourMargaret Penrose
- eBookThe Motor Girls in the Mountains; or, The Gypsy Girl's SecretMargaret Penrose
- eBookThe Motor Girls on Cedar Lake; Or, the Hermit of Fern IslandMargaret Penrose