I love this series and I'm very invested, at this point, in Will Henry and the doctor. But--this is a difficult book to read. The writing and language is very dense. I actually put down the paper copy and got it on audio instead, and then found excuses to sneak extra listening minutes wherever I could. 
 So--yeah, great series, but not an easy series. Listen to it, though! (And there are still parts that are just horribly, gag-inducingly gross, but that's to be expected when you're dealing with DEAD MONSTERS and MONSTERS WHO BRUTALLY KILL THINGS, right?)