Avsløringen skjer inne.

In Norwegian, the definite article is usually attached to the end of the noun.

• avsløring = revelation / reveal / disclosure
• avsløringen = the revelation / the reveal / the disclosure

So -en is the definite ending for this noun.

The base form is å skje, which means to happen.

• skjer = present tense, happens / is happening
• å skje = to happen

So Avsløringen skjer inne literally has the structure The revelation happens inside.

Because skje means to happen / take place, which is more natural for events.

Compare:

• Avsløringen skjer inne = The reveal happens/takes place inside
• Avsløringen er inne would usually sound like The reveal is inside, which is a different idea

So skjer tells you that this is an event occurring somewhere.

Inne means inside / indoors.

In this sentence, it tells you the location of the event. It works a bit like an adverb of place.

A useful contrast:

• inne = inside / indoors
• ute = outside / outdoors

This is a very common question.

• inne usually means inside / indoors in a general sense
• inni often means inside of something more specifically

Examples:

• Vi er inne. = We are inside / indoors.
• Nøklene er inni veska. = The keys are inside the bag.

So in Avsløringen skjer inne, inne is natural because it just means the event takes place indoors.

This is normal Norwegian main-clause word order:

subject + verb + adverb/place word

So:

• Avsløringen = subject
• skjer = verb
• inne = place word

That makes the sentence straightforward and standard.

Yes, you often could.

• skjer = happens
• foregår = takes place / goes on

Both can work for events, but there can be a slight difference:

• skjer focuses on the fact that it happens
• foregår focuses a bit more on where the event is taking place

So Avsløringen skjer inne and Avsløringen foregår inne can both be natural, depending on context.

A rough guide for English speakers is:

av-SLUR-ing-en

A few notes:

• the ø sound does not exist in English, so it may take practice
• the stress is mainly on slør
• the ending -en is usually light and unstressed

If you want to sound natural, focus especially on learning the ø sound well.

Yes. Avsløring can have several related meanings, depending on context:

• reveal
• revelation
• disclosure
• exposé

So the sentence structure stays the same, but the best English meaning may change depending on what is being talked about.