LEGO HIDDEN SIDE: Mystery Castle (70437) for sale online | eBay
Amazon.com: LEGO Hidden Side Mystery Castle 70437 AR Ghost Toy, Castle Model with App-Controlled Ghost Hunting Toy with Jack, Parker, Vaughn, Nehmaar Reem and 2 Shadow-Walker Minifigures (1,035 Pieces) : Everything Else
LEGO 70437 Mystery Castle Instructions, Hidden Side
LEGO Set 70437-1 Mystery Castle (2020 Hidden Side) | Rebrickable - Build with LEGO