Keep the action going

I'm still reading Erik Larson's Devil in the White City. It's still a very good book that concentrates on two stories: the architechts who create the 1898 World's Fair in Chicago, and a maniacal serial killer operating a few blocks away.

Larson is an incredible writer, and he has done awesome research on this subject. No proverbial stone is unturned. But the strong -- albeit sensational -- part of the story is the serial killer. And what I've found is that I'm fascinated by his story. But, as the book progresses (I'm on page 238), his story is interrupted by HUGE chunks of that which concentrates on the architects. When that happens, the action (for me, anyway) slows down considerably. It's frustrating. I want to skip those parts and flip pages to find more about the killer. I won't, though, because I want the full experience the way the author intended.

This does not discount the author's writing ability because I find him to be tremendous. And, in all fairness to the author, this book was in the history section of Barnes and Noble rather than the true crime section. So, I'm guessing that the main thrust (and, obviously, the part with the most archival material) is the architect story with the serial killer just being an added bonus.

I still recommend this title.

Some questions:

Have you had this experience with books before? If so, what titles? (I think the worst was the "Left Behind" series. I did skip around through those!)

Are there tricks to keep the action going, rather than bogging the reader down in detail?

Are writers cheating the reader if we don't provide the "details" -- even if they're mundane?