Nick has already talked to Adeline about the tunnels. Even if he doesn't trust her completely anymore, why does it matter if he keeps it a secret about exploring them further now? Not to mention that the three of them discuss potential dangers (as Monroe says, they don't know who else has access), so Nick sends his friends down there instead of himself, the Grimm, to explore the tunnels under his own home??
Hasn't Adeline been talking about going back to her old law firm for quite a while now.. like before her powers started to resurface? Now we find out that it's a sinister, Wesson filled law firm (what a surprise.. are there any normal people in Portland?) up to no good I'm sure. When her powers were still suppressed, why would she consider going back there? First, why would they want her, and second, why would she want to be around them?
Hasn't Adeline been talking about going back to her old law firm for quite a while now.. like before her powers started to resurface? Now we find out that it's a sinister, Wesson filled law firm (what a surprise.. are there any normal people in Portland?) up to no good I'm sure. When her powers were still suppressed, why would she consider going back there? First, why would they want her, and second, why would she want to be around them?