Fans of virtual reality and video games will love the amazing LEGO Hidden Side universe, where physical and digital worlds merge in an incredible, single or multiplayer augmented reality (AR) experience. This LEGO 70427 Hidden Side Welcome to the Hidden Side ghost-hunting toy combines the open creative play of LEGO building toys with an app – so interaction with the model triggers events in the digital world. Digitally interactive building toy for kids This Welcome to the Hidden Side model reveals a ghostly world when viewed through a smart device equipped with the free LEGO AR app. Kids then get to hunt ghosts, battle the boss ghost Lady E and explore and solve mysteries, either alone or online with friends. And with 4 mini-figures, there's also room for imaginative role-play fun! Welcome to the Hidden Side The LEGO Hidden Side universe is set in the fictional town of Newbury, where ghosts haunt people and buildings. The augmented reality play experience is constantly enhanced through new content, ghosts and special events. The LEGO 70427 Hidden Side Welcome to the Hidden Side includes 189 pieces. Ages 7 and up.