Troll on the Loose

No price history available yet.

Troll on the Loose (4712-1) is one of those compact Harry Potter sets that punches well above its weight in terms of charm and thematic authenticity. Released in 2002 during the first wave of LEGO's beloved Harry Potter line, this 72-piece set captures one of the most memorable scenes from The Philosopher's Stone, the mountain troll encounter in the girls' bathroom at Hogwarts. It is a snapshot of early 2000s LEGO storytelling at its most focused and imaginative. The set centers on a detailed bathroom scene complete with stone-effect flooring, broken sink elements, and a buildable mountain troll figure that is genuinely imposing for its small scale. The troll itself is the star here, constructed with a satisfying chunky build that feels true to the creature's brutish design in the film. The inclusion of a toilet stall and crumbling wall sections adds environmental detail that rewards closer inspection. While the set contains no minifigures, the troll build more than justifies the piece count on its own merits. This set is ideally suited for collectors who focus on the early Harry Potter era, particularly those hunting down the original 2001 to 2003 wave that started it all. Scene-specific sets like this one have a devoted following among enthusiasts who appreciate LEGO's earlier, more cinematic approach to licensed themes before the lines became more minifigure-heavy and play-feature driven. Although Troll on the Loose is currently available, sets from this vintage Harry Potter generation have a strong track record of appreciating steadily once they exit the market. The 2002 wave in particular carries significant nostalgic weight in the collector community, and sealed copies of smaller sets like this one tend to attract consistent interest on the secondary market. If you have been sitting on the fence, now is a sensible time to act.