When cousins Jesse and Daisy ("Daze") find a dragon egg, they soon become keepers of a baby dragon called Emmy. Silly plot contrivances (such as Jesse knowing that someone evil is searching for the dragon, yet he posts signs about a "missing lizard" all over town anyway) really hold the story back and magnify its three main features: a good premise held back by weak characters and contrived plot.
The prose here is simple and workmanlike, rarely flashy but generally serviceable for the intended audience. For example: "Anyone seeing them together would think they were friends instead of family, because they looked nothing alike. They were both ten years old, but Jesse was small for his age and sturdy, with brown eyes and shaggy brown hair. Daisy was fair-haired and tall and thin." Effective, but not sparkling by any means.
The writing shines brightest in the few descriptive passages devoted to the newborn dragon. Here's one of my favorite descriptions in the book: "It was no bigger than a newborn kitten. Its bottom half was stout and covered with shiny scales. They were green (or blue, depending on how you moved your head) with the rainbow sheen of oil on a puddle. Sprouting from its shoulder blades were two dark green bumps, not so much wings as the idea of wings. Two long dark green ridges ran down its back and along its pointed tail. Its head was like a seahorse's, only broader."
The dragon in question, Emerald (Emmy for short) seems to have the vocabulary of ET The Extra Terrestrial: "Wa. Ter. Goooooood." And: "Emm. Eee. Like Rrrrocckkk!" It can be annoying to read aloud, but kids (at least my niece and nephew, to whom I read it) like the exaggerated way of speaking.
Generally speaking, the book seems to think it's funnier than it really is, but there are a few amusing scenes. For example, at one point the cousins attempt to find something for Emmy to eat and she rejects everything in the kitchen. This was laugh-out-loud hilarious to my niece and nephew; they loved it. Lots of giggles.
Overall: A decent read for younger kids. The interesting premise is not helped by largely mundane writing, nor are either of the two main characters particularly compelling or well developed, but younger kids will most likely be distracted by the silly dragon antics enough not to mind.
I'm not terribly excited to read book two to my niece and nephew, but they enjoyed this first entry enough that they're looking forward to it. Which I suppose is all that really matters!