LEGO Castle Ninja: Stone Tower Bridge (6089) 42884060893 | eBay
Amazon.com: LEGO NINJAGO Journey to The Skull Dungeons 71717 Ninja Playset Building Toy for Kids Featuring Ninja Action Figures (401 Pieces) : Toys & Games
Castle | Ninja | 1998 | Brickset: LEGO set guide and database
Near Complete Castle Ninja Subtheme. 12 Sets from 1998/1999. : r/lego