To this day Possession is still holds, IMO, the spot of being the best and most fun season of Ninjago to date. It's a blast and can even be an emotional trip.
Lego Ninjago Episode 10 : The Ghost Era (Part One) - video Dailymotion
Season 5: Possession | Ninjago Wiki | Fandom
Ninjago: Possession - Episode 48 "The Temple on Haunted Hill" Coverage - YouTube
Lego Ninjago: Masters of Spinjitzu: Possession TV Review | Common Sense Media
Season 5: Possession | Ninjago Wiki | Fandom
Ninjago: Masters of Spinjitzu" The Royal Blacksmiths (TV Episode 2012) - IMDb