Near Complete Castle Ninja Subtheme. 12 Sets from 1998/1999. : r/lego
Amazon.com: LEGO NINJAGO Journey to The Skull Dungeons 71717 Ninja Playset Building Toy for Kids Featuring Ninja Action Figures (401 Pieces) : Toys & Games
Ninja | 1998 | Brickset: LEGO set guide and database
LEGO Black Ninja Bonsai Minifigure cas048 | BrickEconomy
LEGO Castle Ninja: Stone Tower Bridge (6089) 42884060893 | eBay
LEGO Set 6045-1 Ninja Surprise (1998 Ninja) | Rebrickable - Build with LEGO
Ninja 1998 vs Ninjago: which is better in your opinion - Ninjago - The TTV Message Boards