It’s not often that my all-time favorite Lego set drops so much in price, and it’s even more unusual for the follow-up to get any kind of discount at all. But hey, it’s Prime Day. Those kinds of shenanigans happen during Amazon’s sales event.

Yep, Lego Rivendell (which I’d say is pretty jaw-dropping, so far as Lego sets go) has fallen to £365 at Amazon instead of the usual £429.99. That’s just a couple of quid away from a record low for the kit. This sort of saving isn’t common at all, with the average cost being north of £400.

• Lego Lord of the Rings: Save up to £65 at Amazon

Because I think it’s one of, if not the, best Lego sets, that’s not an offer to sleep on. Much like another discount that’s flying around as part of the sale, actually; Lego Barad-dur has dipped to a record low, dropping to £339.98 at Amazon from £399.99. That’s an incredibly tasty reduction worthy of Mordor, especially because I’ve not seen this sort of bargain on the model often.

In other words, it’s a good day if you’re a Lord of the Rings fan. I’ve been tracking the best Prime Day Lego deals since early doors on Monday, and I’ve yet to find anything much better.

I’ve made a lot of kits in my six-plus years covering Lego, but none compares to Rivendell. For me, this is everything good Lego models can and should be; it’s rolling secrets that can be discovered by looking around the set, it’s visually stunning on display from practically any angle, and it’s incredibly clever in the way it reuses old pieces to make something new. Like I say in my Lego Rivendell review, this “is the ultimate collectible for Lord of the Rings fans. It captures the beloved location’s atmosphere through smart design choices and a layout crammed with detail, leaving us with one of the best sets Lego has ever made.”

I still stand by that a couple of years on. Sure, there have been truly excellent kits following it. Barad-dur is equally impressive, for example, and the likes of the Lego Deku Tree are hard to beat.

Speaking of Barad-dur, this enormous set, stretching to a frankly absurd 33 inches in height, is equally eye-popping to witness in person. A complexly layered, rocky edifice spirals upward to the Eye of Sauron itself, and you get a sense of Mordor’s volcanic landscape through well-placed fiery bricks at the base of the tower.

Turn it around and you’ll find plenty to see inside, too; much like Rivendell, it’s crammed with little rooms and hidey holes bearing multiple references to the movies. A mess hall, the Dark Lord Sauron’s throne, and more are waiting to be discovered… along with a small legion of orcs, Frodo and Sam, Gollum, the Mouth of Sauron from Return of the King’s extended edition, and Sauron himself as he appeared at the beginning of Fellowship of the Ring. It’s the ultimate ode to Lord of the Rings bad guys.

Unfortunately, the newest Lord of the Rings kit (The Shire) hasn’t been included in this year’s Prime Day discounts. That’s likely due to how recently it came out, as in my experience, sets don’t tend to get massive price cuts until a little later in their lifespan.

You can pick up the Balrog Book Nook for a heavily reduced £93.49 at Amazon rather than the usual RRP of £109.99. By my reckoning, it’s never been cheaper.

To get the latest price cuts, don’t miss our guide to the most tempting Lego deals. If you’re hunting down other toy recommendations, meanwhile, be sure to drop in on the best Nerf blasters and the best water guns.