"There's a new gang in Ninjago City--the Sons of Garmadon, named after Lloyd's dad. These crooks are tough, and they are determined to steal the famous Oni Masks. If they get all three masks, the Sons of Garmadon could become all-powerful. It's up to Lloyd and the ninja to catch those crooks!"--Back cover.
year:
call number/section: 1000
subjects: ninja, fiction, enemies, novelizations, action and adventure fiction, readers (publications)