From Edgar Award Winner Dori Hillestad Butler comes a new chapter book mystery series, The Treasure Troop! Join Marly, Sai, and Isla, three code-cracking kids on the hunt for an old neighbor's hidden treasure. In the second book of this code-busting series, Marly, Sai, and Isla are back on the hunt. After finding Mr. Summerling's hidden treehouse, they've discovered a new set of clues for them to follow, leading them straight to the heart of their mysterious neighbor's life: his house. The same house Marly has been living next to all of these years, which, they discover, is filled with hidden rooms and staircases. With just a few scraps of papers as clues, and Mr. Summerling's angry son on their tails, can the Treasure Troop find the answers they're looking for? Dori Hillestad Butler's books have appeared on children's choice award lists in 18 different states. Trading Places with Tank Talbott won the Maryland Children's Choice Award in 2007, and The Buddy Files: Case of the Lost Boy won the 2011 Edgar Award for Best Juvenile Mystery. She is the author of the successful Haunted Library series, and has also been a ghostwriter for the Sweet Valley Twins, Unicorn Club, and Boxcar Children series. She's published numerous short stories, plays, and educational materials, and has served as the Iowa Society of Children's Book Writers & Illustrators' Regional Advisor. She grew up in southern Minnesota and now lives in Seattle with her husband, son, dog, and cat. She visits schools and leads writing workshops all over the country. Tim Budgen is an illustrator and art teacher. For much of his life he has been scribbling down ideas and can usually be found with a pencil in one hand and a sketchbook in the other! He lives by the sea on Hayling Island, England, with his wife, Julia. Chapter 1 A New Envelope “Marly Deaver, you’ve got mail!” Marly’s older brother Nick dropped a blue envelope with her name on it onto the kitchen table. Marly was still half asleep. She yawned and rubbed her unpatched eye beneath her glasses. Though she was almost nine years old, she still had to wear a patch to train her bad eye to work as well as her good eye. She reached for the envelope, but her other brother, Noah, grabbed it first. “Hey!” Marly cried as Noah held the envelope out of her reach. “This better not be another letter about a will,” Noah grumbled, trying to read it through the envelope. A few weeks ago, Marly had received a letter inviting her to the reading of Harry Summerling’s will. Mr. Summerling was the Deavers’ next-door neighbor. Unfortunately, he had died earlier in the  summer. Marly still couldn’t believe she was never going to see him again.  But he had left something in his will for Marly and two other kids in her grade—Isla Thomson and Sai Gupta. A treasure hunt! Hunting for treasure had been Mr. Summerling’s favorite thing in the world. In fact, he’d died while hunting for treasure off the coast of  Washington State. Marly, Isla, and Sai didn’t know each other very well before Mr. Summerling’s treasure hunt. But they had become good friends while working together on all the puzzles. The treasure turned out to be a secret tree house hidden in the woods behind Mr. Summerling’s and Marly’s houses. Marly hopped up and snatched the envelope from Noah’s hands. “I hope you know it’s a crime to steal someone else’s mail,” she said. “Where’d you find this, anyway?” It just had her name on it. No address. So it couldn’t have come through the post office. “Under the mat on the front porch,” Nick replied. He and Noah had been going out for early morning runs because they hoped to make the eighth-grade cross-country team when school started in a couple of weeks. Marly tore open the envelope and pulled out a sheet of paper. It read: me etm eat thetre ehou seat on eocl ockto day weha vestu ffto tal kab out yo urfri end SG Marly felt a thrill of excitement. The letter was in code! “Well?” Nick asked as he pulled out a chair beside Marly. “What is it? Who’s it from?” Marly didn’t answer. But she was pretty sure SG was Sai Gupta. Noah peered over Marly’s other shoulder. “Can’t tell. It’s in code.” Marly clasped the paper to her chest and glared at her brothers. “Marly must be involved in something pretty shady if she and her friends have to talk in code,” Nick said. Noah nodded. “What are you involved in, little sister?” “Boys!” Mom said in a warning voice. “Stop teasing your sister,” Dad chimed in. Nick held up his hands in surrender. Noah sat down between Nick and Dad. While the rest of the family got their breakfast and talked among themselves, Marly hunched over her letter. Before Mr. Summerling’s treasure hunt, Marly had had no idea how much fun it was to solve puzzles and codes. Or that she was actually good at it. But she was. Even with her eye patch on, it didn’t take her long to crack Sai’s code. The third line practically gave it away. All the spaces between the “words” were in the w