Angus is mystery book nerd, Will is a nerdy mystery book, they're gonna get on like a house on fire. He doesn't know the series but he does know writing tropes. He'll also give fun (for Angus) stories, or more like anecdotes, of Actual Professional Detective cases he's worked on. Mostly from the fun comparison of how sometimes real culprits are even dumer than book ones. He had one guy try to stave off suspicion by playing horror movie scream reels. So stupid.

At some random point after Angus is used to getting in book conversations with some tall dude with a metal arm, friendship let's drop the tact. Kid's been here long enough to do a detective flex and start being cagey at literally everyone, right?

Wanna good cop bad cop some of the workers, kid?