LEGO Hidden Side The Lighthouse of Darkness 70431 – AR Ghost Hunting LEGO Set (540 Pieces)

Immersive AR play that blends brick-building with a digital world

Explore the LEGO Hidden Side universe where hands-on construction meets augmented reality. The Lighthouse of Darkness (70431) invites kids to scan the brick-built lighthouse with a smart device and unlock a digital world where ghostly activity, mysteries, and mini-adventures unfold. The experience blends tactile building with a dynamic app-powered storyline, offering a fresh way to play beyond traditional LEGO sets.

The Hidden Side story is rooted in the fictional town of Newbury, where quirky haunts and curious events invite curious minds to explore. As the lighthouse comes to life in the digital realm, kids can join the investigation, track roaming spirits, and see how brick and byte influence the action on screen.

What’s in the box

• 540 bricks create a weathered lighthouse, rugged cliff, rocky jetty, and a floating jet ski
• Five minifigures—Jack, Parker, Skeleton, Jennie Napo, and Claus Stormward—fuel role-play and storylines
• Built-in details include a cliffside scene, dock, and atmospheric seaside elements

AR adventures and play options

• The AR experience supports single or multiplayer play, blending physical and digital interactions
• Scan the model with the Hidden Side AR app to reveal a digital ghost world, hunt ghosts, solve mysteries and confront the boss ghost Joe Ishmael
• Storylines evolve with new app content, ghosts, and events, inviting ongoing exploration

The assembled model stands over 11 inches (29 cm) tall, about 8 inches (22 cm) wide, and 7 inches (18 cm) deep, making it a striking display piece when not actively explored in AR. This set is designed for kids aged 8 and up who enjoy a blend of ghost-hunting toys, VR-inspired play, and creative building experiences.

Why this LEGO Hidden Side set stands out

LEGO Hidden Side combines hands-on construction with a digital layer, appealing to builders who enjoy both tactile creation and immersive storytelling. The Lighthouse of Darkness offers a compact-but-detailed build, a vivid seaside setting, and an evolving AR experience that can be revisited with new content and challenges. It’s a flexible gift for birthdays or holidays, useful for solo play or collaborative adventures with friends and family.

In short, this set invites kids to bring a haunted lighthouse to life through building, imagining, and exploring a digital world that responds to their actions. It offers possibilities for creative narratives, exploration, and interactive play—without promising guaranteed results, but with plenty of room for exciting discoveries along the way.