Full review posted here with artwork from the novel. 
 You guys. This book is SO freaking cool! While combining prose with art is not an entirely new concept for young adult with novels like The Invention of Hugo Cabret, The absolutely True Diary of a Part-Time Indian, Winger, etc, I do think that In the Shadows is unlike anything you've ever seen before, even Lips Touch: Three Times, Jim's gorgeous collaboration with Laini Taylor. 
 What makes In the Shadows so unique? Well, Jim's art is not just illustrations that match up with Kiersten's prose; instead, In the Shadows tells two interconnected stories in separate locations and separate timelines. Interconnected....but how? Well, that's actually a huuuuuge spoiler, and not one I'm going to give you because that would be rude. Also a major spoiler: we don't know who Jim's protagonist is. 
 That's right. This handsome devil has an unknown name. There are three male protagonists in Kiersten's story, and he could be any of them. Or....OR...he could be someone else entirely. You may think you know, but I guarantee you won't know for sure. I kept guessing all the way until The Big Reveal, and only occasionally was I right. The mystery of it all is thrilling and utterly mesmerizing. In addition to the art story being completely compelling, it's a veritable feast for the eyes. Jim's colors are simultaneously bright yet muted for a vintage look. He masterfully plays with light and, yes, shadows to draw your eyes to important details, especially in busy, crowded frames. Your eye is guided toward the action, but then you could spend hours poring over each individual frame at all the intricate details he includes. My favorite drawings are on pages 316 & 317, in Chicago, and 368 & 369. I can't share because spoilers but OH. MY. GOSH. I could spend all day looking at the hands on 368 alone. (Kiersten told me that's one of her favorites too!) 
 As for Kiersten, I think this book is her best yet. Her writing is incredibly poetic and super sensory. At the very beginning of chapter three, Thom's fingers are "pounding violently instead of....caressing," and Kiersten mentions the "cool ivory" of piano keys. I could see it, hear it, feel it. Later on, there are smells and tastes, and it's absolutely captivating. She draws out each of the characters-Minnie, Cora, Charles, Thom, and Arthur-and they stand individually, but they also all work in any combination. I love that Kiersten plays with those combinations too: the sisters; the brothers; all three boys; and any mixture of two or three of the group. I love that all of them has a unique relationship with each of the others, and all those relationships, romantic, friendly, and otherwise, make me feel things. If I had to pick, my favorite, though, might be Charles because of his good humor. He's (seemingly) effortlessly charming, and he's got such a sweet spirit, even if he's a bit mischievous at times. I love how his mind runs with thoughts and plans as he tries to put everything and everyone in their own place. Favorite lines of Kiersten's: "[SPOILER] and [SPOILER] found in each other someone to both take care of and be taken care of by, and they were happy and content and had ridiculously fat babies whose laughter was like liquid joy." *dies* FAT BABIES WITH LAUGHTER LIKE LIQUID JOY. *dies again* 
 The very last thing I want to say is something I NEVER say. If you want to read In the Shadows, do not read the ebook. Either buy a physical copy or borrow from the library. Scholastic allowed me access to the DRC before publication, but I stopped reading almost immediately. I knew that the art would not be displayed to its fullest, and I didn't want to read the book without that full experience so I waited until I had a physical. The ebook is, understandably, fairly expensive because of the art (not only are Jim's pages in full color, but the prose has beautiful formatting as well). I think it's definitely worth the price BUT I also strongly feel that if you are going to invest in a copy, you should go ahead and invest in a stunningly gorgeous physical copy you can enjoy the way it is meant to be enjoyed so you can hold it and cuddle it and stroke the pictures. NOT that I've done that or anything.... *coughs* This is awkward.... Oh, like YOU'VE never done it. 
 In the Shadows is a beautiful novel. Both stories are so alive and vibrant in their own unique way, and Kiersten and Jim clearly work well together as the prose and art blended together seamlessly, even though they take place in different times and places. I have enjoyed Kiersten and Jim's other work, but I really hope they consider working together in the future because combined, these two powerhouse storytellers are a winning duo! 
 All pictures featured in this review were reposted from Kiersten's blog with both authors' permission. Check out additional In the Shadows art samples on Jim's website here. Artwork copyright owned by Jim di Bartolo. Please do not reproduce or repost art without permission.