This is the 13940th most frequent German word.
fremde
"Fremde" means "stranger" or "foreigner" in English.
Here, "fremden" is used as an adjective to describe the noun "Stadt" (city), indicating it is unfamiliar or not from the same place as the speaker.
Ich bin in einer fremden Stadt.
I am in a foreign city.
In this sentence, "fremden" describes "Autoren" (authors), indicating they are not from the speaker's region or country, emphasizing their origin.
Dieses Buch wurde von fremden Autoren geschrieben.
This book was written by foreign authors.
Here, "fremde" serves as an adjective to "Hilfe" (help), indicating the assistance came from an external or unknown source.