“Bei der Oma?”… @ grandmother’s
The english preposition and adverb “by” and the german preposition “bei”, rhyme, look similar, they start with the same letter and heck, sometimes they mean the same thing.
Not this time though.
In this sentence, bei in german is translated as at or with in english.
When by is referring to where a thing, person or place is in relation to something else, it normally means beside or to the side of. There are more details about by and how it is used here.
I don’t know if the three children and the white cat really are staying at their grandmother’s house, but this lovely old photograph was taken in Australia around 1886 by a photographer and mining entrepreneur called Charles Kerry.