Mildred Wirt

Clue of the Silken Ladder

Whispering Walls

Danger at the Drawbridge

Hoofbeats on the Turnpike

Swamp Island

Secret Pact

Behind the Green Door

Saboteurs on the River

Cry at Midnight

Ghost Beyond the Gate

Secret Pact

Clock Strikes Thirteen

Danger at the Drawbridge

Tale of the Witch Doll

Signal in the Dark

Wishing Well

Guilt of the Brass Thieves

Guilt of the Brass Thieves

Hoofbeats on the Turnpike

Voice from the Cave

Clue of the Silken Ladder

Vanishing Houseboat

Clock Strikes Thirteen

Signal in the Dark

Secret of the Sundial (Arabic Edition)

Secret of the Sundial (Chinese Edition)

Ghost Beyond the Gate (Hindi Edition)

Spogelse Buiten de Poort

Duch Za Branou

Fantasma Mes Enlla de la Porta

Spogelse Ud over Porten

Fantom Deye Barye A

Fantome Au-Dela de la Porte

Duh Iza Vrata

Ghost at the Gate (Bulgarian Edition)

Kummitus Kaugemale Varava

Ghost Beyond the Gate (Chinese Edition)

Die Pforte Den Geist

Aave Kuin Portti

Ghost Beyond the Gate (Greek Edition)