Most underrated series you have ever read

[Lucian Hodoboc]

Which is the most underrated book series you have ever read, in your opinion? Name the series that fascinated you so much and yet is considered mediocre at best by the majority of readers and critics. 

[Angury]

The Bartimaeus Trilogy by Jonathan Stroud.

 

Not sure how it's viewed by critics but I'm always surprised at how it's not more popular. It's written in a style that I haven't come across very much (multiple footnotes with another character offering their own opinion to events as they unfold) but works very, very well. It's well-written, funny and offers a plot that is both action-packed and engaging but also makes you think. More importantly, it doesn't play to cliches. 

 

Would highly recommend.