I'm going to put a word of warning (based on my personal opinion, so take with appropriate amount of salt) about Memory, Sorrow and Thorn:
It is, without doubt, the most terminally boring series of fantasy I've ever read. Your mileage may vary, but if you are bored halfway through the first book and finding your attention wandering, do yourself a favor and leave it at that. It is NOT going to change in style or pace of events for the rest of the series and you will not get those hours back. I wish I could.
If, on the other hand, you find yourself immersed and blown away, that is quite fine and I hope you enjoy the books fully. I also hope that whatever it is you have isn't contagious.