This suspenseful middle-grade fiction follows two siblings who move into a newly renovated house filled with smart technology—and a restless ghost who doesn’t like the changes. Its central theme explores how power, fear, and friendship collide when a high-tech home feels alive. Ideal for readers aged 8–12 who enjoy eerie mysteries and fast-moving adventures, the tone is adventurous with just the right amount of spooky fun.

The story is told through a brisk, story-led narrative that centers on a tech-loving brother and his sister as they discover the home’s gadgets are more than they seem. The Mastermind device can turn on lights, lock doors, and open windows, amplifying both convenience and danger. The reading experience balances tension and curiosity, drawing readers deeper into the mystery without losing momentum.

Readers will stay engaged as clues emerge, outcomes are predicted, and questions about control and responsibility arise. The blend of gadgets with a haunting atmosphere creates a distinctive, contemporary feel that feels both fresh and timeless. The journey invites kids to think critically about technology, trust their instincts, and consider how teamwork helps when fears surface.

• Two siblings navigate a high-tech, haunted home
• Suspenseful plot with twists suited for middle-grade readers
• Story-driven writing with vivid, cinematic imagery
• Thoughtful themes about courage, responsibility, and teamwork
• Read-aloud friendly with room for discussion about technology and fear

After finishing, readers gain a thrill-filled sense of accomplishment, a curiosity about how technology shapes daily life, and confidence to face the unknown with courage and collaboration. The story leaves a lasting impression by illustrating how friendship and resilience light the way through dark, uncertain moments.