Has anyone conducted an in-game investigation?

Has anyone conducted an in-game investigation?

Has anyone conducted an in-game investigation?

My players recently filled a clock which resulted in a secret society kidnapping one of the PC’s siblings. They know the name of the group and which entity it serves, but very little else. Our next couple play sessions will be a mini-arc centered around rescuing the PC’s sibling, but I don’t know how to handle that as a score or as a series of scores.

I was thinking, broadly, in our upcoming session we’ll figure out where the HQ is, then do a session acquiring the goods needed to break in, and then do a session of the actual rescue mission. I suppose I could condense that all into one score and handle the “gather intel” and “gather supplies” as flashbacks etc., but my players seemed excited about having an arc.

Any suggestions?

* For reference, we’re playing in a custom/homebrewed setting, and not Duskvol

** Sorry if this posts in the wrong place, I’m a rank newbie when it comes to Google+!