Learn German: Wir kriechen leise entlang des dunklen Schachts in das Gewölbe. - We crawl quietly along the dark shaft into the vault.

Wir kriechen leise entlang des dunklen Schachts in das Gewölbe.

We crawl quietly along the dark shaft into the vault.

Breakdown of Wir kriechen leise entlang des dunklen Schachts in das Gewölbe.

Questions & Answers about Wir kriechen leise entlang des dunklen Schachts in das Gewölbe.

Why is the genitive case used here (des dunklen Schachts) with entlang? I thought entlang takes the accusative.

The case depends on where you put the preposition! If entlang comes after the noun, it takes the accusative (e.g., den dunklen Schacht entlang). But when it is placed before the noun, as in this sentence, it requires either the genitive (as seen here with des ... Schachts) or the dative case.

Could I use the dative case instead of the genitive after entlang here?

Yes, you can. When entlang is placed before the noun, using the dative (entlang dem dunklen Schacht) is very common, especially in everyday spoken German. The genitive (entlang des dunklen Schachts) sounds a bit more formal or literary, which fits the dramatic tone of exploring a dark shaft.

Why does the adjective dunklen end in -en?

This is an example of weak adjective declension. The article des already clearly shows that the noun is masculine and in the genitive case. Because the article does the heavy lifting of showing the case and gender, the adjective just takes the standard weak ending -en.

Why does the sentence use the accusative in das Gewölbe instead of the dative in dem Gewölbe?

in is a two-way preposition. Because the subjects are actively moving from one place into a new destination (crawling into the vault), we must use the accusative case. If they were already inside the vault and just crawling around within its walls, you would use the dative case to show a fixed location.