LEGO can never leave well-enough alone, which is why the company is constantly coming up with innovative ideas for its building kits — one of the latest being the Hidden Side line. These sets blend LEGO's classic building blocks with an app on your smartphone that utilizes augmented reality technology to make it appear as if the set is coming to life. The sets focus on the "chilling, creative world of ghosts", with eight sets having been revealed so far, and today's your chance to save on nearly every single one.

The best offer available today is on the LEGO Hidden Side Ghost Train Express Building Kit. It's down to just $59.99 at Target today, saving you $20 off the regular cost. Plus, as usual, Target REDCard holders can save an additional 5% on the purchase and bring the price down to $57.

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Spooky Savings

LEGO Hidden Side Ghost Train Express: Augmented Reality Building Kit

LEGO Hidden Side AR Building Kits use an app on your smartphone to bring these spooky LEGO creations to life, and now you can score the Ghost Train Express set at a new low price via Target. Use a REDCard to save 5% extra!

$59.99 $79.93 $20 off

The deal given is no longer valid and we do not have a better one. However, we have found some similar deals

Each Hidden Side building set features a mystery, and once the set is built, you can start discovering clues and catching ghosts hidden within the set using the free Hidden Side AR app. Of course, you don't need the app to have as much fun with these LEGO sets as you can with any other, though the app helps add a bit of extra magic to each one.

At this time, you can find six out of the eight Hidden Side LEGO sets on sale at 20% off via Amazon, including:

The Newbury Haunted High School kit is the priciest Hidden Side set available so far, and sadly it's the only one which hasn't seen a discount yet. We'll be keeping our fingers crossed though.

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