Seek-quence is the Old Gotham South Riddler Puzzle in LEGO Batman: Legacy of the Dark Knight, and the solution is to activate the five levers in the order 2, 1, 5, 3, 4 while using Batman’s UV Vision and Jim Gordon’s Foam Sprayer to access the blocked switches.
How to solve Seek-quence
Step 1: Reach Gotham Books
Travel to the rooftop of Gotham Books in Old Gotham South, using the map marker at 323, 294 as your anchor point.

The puzzle sits in the middle of the district, overlooking a park to the west, so climb to the roof before trying to interact with anything.

Step 2: Read the UV clue
Switch to Batman and activate UV Vision on the circles above the Riddler Box cage.

The circles give you the activation pattern, and the correct sequence is 2, 1, 5, 3, 4.

Step 3: Start with lever 2
Move to the first required switch in the sequence and activate lever 2. Follow the connection and grapple up.

The route will be blocked by fire.

So use Jim Gordon’s Goop gun first.

Once the fire is put out, pull the lever there.

Step 4: Clear the missing-handle lever
Head down.

Hit the nearby spider web.

And recover the handle.

Insert it into the lever.

Then activate it as lever 1 in the sequence.

Step 5: Continue through the rooftop
Find lever 5 next near the tank area.

Then return to the west-side rooftop path for lever 3.

After that, hop down to the lower position for lever 4,

Then backtrack if needed to confirm you did not miss any earlier switch.

Critical mistakes
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Do not pull the levers in visual order; use the UV Vision order from the circles above the cage.
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If a lever is burning, switch to Jim Gordon and use the Foam Sprayer instead of trying to brute-force it.
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If a lever is missing its handle, use Batman’s Batarang on the nearby spider web first.
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If you get turned around, the rooftop clue video confirms the order as 2, 1, 5, 3, 4, so reset and recheck before wasting time.
Rewards and progress
Completing Seek-quence advances the Old Gotham South Riddler set, which sits inside the game’s wider 61-Riddler-puzzle pool.

Full Riddler and Cluemaster completion eventually leads toward the special outfit and achievement path tied to the larger puzzle chain.
Seek-quence is a quick but easy-to-miss puzzle that rewards careful reading of the UV hint and efficient use of Batman and Gordon’s tools, so solving it cleanly saves time during Old Gotham South cleanup and contributes directly toward the broader Riddler completion track.