I’ve binged all four books within a month or so, and now I’m quite sad that I don’t have a fifth book to read/listen to. Worth every moment, and the whole ride has been awesome. Well performed, enjoyable sound design, and well written overall.
Nothing beats The Netherworld chapter in the last book, but to expect such things in every book is just wrong thinking.
I’ll wait with baited breath for book five. I hope it doesn’t go the way of Monster Core…