"Intricate plot over many books"
If the Harry Potter series is the standard, Rick Riordan's Percy Jackson series is an admirable try, but still minor league. This 4th book in the series is probably his best; the story plot gets thicker and more intriguing. However, there are chapters that are adventurous but do not add to the developing plot in any way: OK for kids, but less than fulfilling for adults. Overall, a good purchase. I will read/listen to the next book.
"Tight plot; intriguing ending"
To me, this is prototype Koontz. He got everything right with this one: Character development, a smattering of meaningless detail, an ending full of wonder, suspense, and plenty of horror. For those of you who tire of a long, drawn out plot; this book is not for you. But for those of you who enjoy every delicious step in a 1000 mile journey--you'll love it!
"Sophmoric"
Rick Riordan's second book in the Olympus series is quite good, but is not as entertaining as the first book. However, much like JK Rowling, his second book seems to be a spring-board for upcoming books in the series: Events that transpire in book 2 will likely be relevant in later books in the series. I look forward to "The Titan's Curse".
"Alice in Wonderland 2000"
The three stars goes to the narrator. He was outstanding. The British accent and vocalization was ideal for this book. Unfortunately, I didn't care for the story. While the quest of the story is well defined (get through the seven days of the week), the plot is quite hodge-podge. It is as if the main character was placed in a series of bizarro dilemmas which are far too outlandish for the imagination. Mr. Monday reminds me of a re-worked 21st century version of Alice in Wonderland--without the enchantment.