ne aliter quid eveniat, providere decet

[ovidia nemausa]

Hello,
In the sentence from Sallust:

Ceterum ante hos te , Jugurtha , qui aetate et sapientia prior es, ne aliter quid eveniat, providere decet (te).

What is the function of 'quid'?
Is it an expression ('aliter quid')?
What could be replaced with ('rem'?, 'quam'?)

Thanks in advance.

 

[Notascooby]

Quid from aliquid= something. The ali- drops of after ne

Aliter is an adverb so should go closely with the verb.