The Books

The Land of Blue

A Novel for All Ages

Mom’s Choice Award, Winner

Twelve-year-old Cassie Connor’s father has disappeared, and her mother and grandparents won’t tell her where he went, or why. Then one hot August afternoon an endearing old woman named Agatha arrives on the dilapidated porch and tells Cassie that her father has gone to the Land of Blue — and that Cassie is the only one who can bring him back. Under Agatha’s tutelage, Cassie and her best friend Mariana zipper between her Irish-Catholic grandparents’ house in Boston and the foggy, carnival-lit world of the Land of Blue, where they meet TJ, a boy searching for his missing brother. But Cassie’s plans are thwarted at every turn — until she falls through the Ripple and discovers that things are not always what they seem.

Reviews

Caution: you won’t be able to put this book down! Braeden, age 11
One of the best reads I have ever read! Rachel, 9th grade
Land of Blue tackles depression and addiction masterfully. Ilana Orloff
Named number ten in a widely shared roundup of twelve life-changing books for surviving, healing, and thriving. Editorial roundup

Trust Your Intuition

100 Ways to Transform Anxiety and Depression for Stronger Mental Health

Nautilus Book Awards, Winner · Book one in the Trust Your Intuition series

One hundred simple tips and techniques designed to teach you to harness the power of your intuition, find the meaning inside your suffering, and transform anxious and depressed feelings into something stronger. Divided into five sections — hold on, take good self-care, believe, trust your intuition, and feel better — and packed with tools Jill has used personally for over thirty years and clinically with thousands of clients.

Reviews

The strength of this book is its simplicity. Judge, 7th Annual Writer’s Digest Self-Published eBook Awards
Short chapters let a reader open the book at any page and find something steadying within a couple of minutes. Writer’s Digest awards judge
Kirkus Reviews found that Jill’s more intuitive suggestions sit comfortably alongside the book’s standard psychological guidance. Kirkus Reviews

Trust Your Intuition

100 Ways to Support Social, Emotional, and Mental Wellness in Children

Book two in the Trust Your Intuition series

Written for caregivers of children twelve and under, this book offers one hundred immediate, practical takeaways for creating harmony at home or in the classroom. Useful on its own, and useful as a supplement while working with a counselor or waiting to secure one. Drawn from more than twenty-six years of practice as both a parent and a clinician.

Reviews

Jill is obviously very passionate about supporting parents. I have worked with children as an educator in the public schools for many years and I can tell you that Jill knows what she is talking about. This is a highly solution-based book that speaks to parents with the utmost respect and compassion. Jill understands the challenges that today’s parents have to face and she addresses the issues with creativity, equanimity, and real-life wisdom. Jill writes from many years of practical experience as a therapist and as a parent herself. This book suggests that Jill Sylvester is deeply invested in providing ways that empower parents to help themselves so that they feel competent and confident to help their kids. This book is filled with 100 ways of the closest thing to magic that a parent could ask for — it delivers! I would recommend this book to any parent that wants to help their child in a loving and effective way! Paula Sullivan, MS, CCC-SLP

Devon: Dream Agent Series

Awakening (Book One) and Pieces (Book Two)

Young adult fiction

Awakening. Devon Alante wishes she could feel as excited about her junior year as her friends do. But while they’re going to parties, planning for college, and falling in love, Devon is struggling with dreams that have plagued her as far back as she can remember. It isn’t until she hears a voice calling her name that she realizes the dreams are becoming real — and that what she sees might be a gift she can use to help someone else.

Pieces. Devon has been invited to develop her multisensory perception skills alongside detectives at the local police station — the only teenager in the room. But the dreams about her best friend Gwen’s boyfriend keep nagging at her, and Gwen refuses to believe a word of it. Then Devon finds her late mother’s journal, and begins to wonder who has been sending the dreams all along.

Reviews — Awakening

I found this book fascinating and suspenseful. It draws you in right away, and what I thought would be a good bedtime read for a few weeks only lasted two days! I found myself sneaking a few pages throughout the day because I needed to know what happened. The intuition and dream part was engrossing and very interesting to learn about, while the suspense of the story itself kept me turning the pages. Jill Sylvester, you’ve done it again — I can’t wait to read more in this series! Reader review
Another great book by this author! Her first book, The Land of Blue, is one of my favorites, so I was delighted to be just as intrigued with this one. Each night I looked forward to reading it to see what would unfold next for Devon. I was also really interested to learn more about dream interpretation — I keep a dream journal, so it was fascinating to read how the supporting characters described intuition and the world of dreams. I’m very much looking forward to the next one in the series! Reader review
Just one of those stories that you need to see what happens next! Five stars. Reader review

Reviews — Pieces

This book is a great story for teenagers and adults alike. The author addresses difficult issues we all face — family, dating, anxiety — through Devon’s day-to-day activities with her family and peers. I am looking forward to seeing where the story takes Devon in her life journey. So excited to read the third book, and let’s make this a mini-series please! Reader review
I enjoyed reading this book and the way it portrays a young girl developing her psychic gifts. The storyline goes into great detail about her thoughts and actions in everyday adventures as her dreams play a role in guiding her. It captures your attention and makes you cheer for her as she helps the friends and family in her life. Reader review

Coming Soon

Book Three in the Devon: Dream Agent Series

Fall 2026

Hear when it’s out

Signed copies

Personally signed by Jill

Signed copies of any title are available directly from Jill. Send your request through the contact form — let her know which book and who it’s for — and she’ll follow up individually to arrange payment and get it in the mail.

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