Q:

How to interprete 寄る in this sentence

For full context, see here:
https://www.docdroid.net/67MgwSw/img-20170910-0001-new.pdf
the following excerpt is from the very last line:
じゃ、帰りに旅行会社に寄って、調べてみます。
=> "Well, coming home I will try to research travel agency coming close/being close."
"Coming close" refers to the criteria mentioned by the partner in dialogue before (see link). However, I'm still not really wether I interpreted the context correctly. Furthermore, what irritates me is that in my interpretation, 旅行会社 is the direct object of 調べてみます. There is no を or any other particle though...

A:

寄る here should take this meaning:

３ ある所へ向かう途中で、他の所を訪れる。立ち寄る。「出社前に得意先に―・る」「帰りに飲みに―・る」

On the way to some place, stop by at another place.
And 旅行会社 is not the direct object 調べてみる. XXXに寄る here means "stop by XXX".
The whole sentence should be:
On my way home, I will stop by the travelling agency and check (it).

