The Signal in the Shadows

By: Roam, Vexton

Every mystery begins with a question, but some secrets were never meant to be answered.

Twelve-year-old Mateo Correa thought the hardest part of his life was his father's mysterious disappearance-until a violent storm uproots an ancient oak in his backyard, revealing a metallic trapdoor marked with a winged serpent and a sun.

Forced into a race against time, Mateo and his friends Luc a and Nico descend into the forgotten depths beneath their town. What they find is Xilthra, a hidden city of shadows, ancient technology, and a dangerous brotherhood known as the Silent Builders. Guided by his father's secret journal and a silver coin that seems to pulse with a life of its own, Mateo must solve the ciphers before the mysterious Keymaster claims the ultimate power.

From haunted observatories and lost islands to underground catacombs filled with bioluminescent moss, The Signal in the Shadows is a high-stakes Middle Grade Mystery Adventure where courage is the only flashlight.

Inside this action-packed detective story:

Solve the Puzzle: Decipher the symbols of a secret society determined to keep the past buried.

Explore the Unknown: Journey through secret caves and hidden labs where science and legend collide.

Face the Shadows: Join a trio of brave friends as they uncover the truth about their families' legacies.

Perfect for fans of high-energy adventure series, young detectives, and stories where curiosity is the greatest weapon.

Will Mateo find his father, or will he become another signal lost in the shadows?

Unlock the mystery today. Turn the page and step into the unknown.

• Format: Paperback
• Language: English
• ISBN: B0GR1N2L3Y
• ISBN13: 9798233637247
• Release Date: February 2026
• Publisher: Vexton Roam
• Length: 124 Pages
• Weight: 0.33 lbs.
• Dimensions: 0.3" x 5.5" x 8.5"
• Age Range: 9 to 12 years
• Grade Range: Grades 4 to 7