Castlevania: Belmont’s Curse: Twilight Gem Location in the Central Sewer Drain

The Twilight Gem is a relic in Castlevania: Belmont’s Curse that sits inside a treasure chest in the Paris Streets region. It rewards spellcasting by raising Rose’s damage right after she fires off an Arcana, which makes it an early pickup worth detouring for during the opening chapter.

Quick answer: The Twilight Gem is in a chest on the western side of the Central Sewer Drain in Paris Streets, at the end of a short platforming and spiked-hazard challenge.

Twilight Gem effect and description

The relic responds to Rose’s magic. Whenever she uses an Arcana spell, her damage rises by 30% for 3 seconds. Its card describes a gem that once adorned the rings of the greatest mages; its shine has faded, but its power remains.

Attribute	Detail
Type	Relic
Effect	+30% damage for 3 seconds after casting a spell
Region	Paris Streets
Sub-area	Central Sewer Drain (western side)

Where the Twilight Gem chest sits

The chest is on a stone ledge in the Central Sewer Drain, with a spiked pit floor to the left and a waterfall beside a barred sewer grate on the right. Reach it by completing the chamber’s obstacle course: cross the ground covered in spikes and rotating saw-blade wheels, then use aerial dashes and grapple anchors to climb up.

How to reach the Twilight Gem

Two approaches lead to the chamber. Both end at the same ledge on the western side of the Central Sewer Drain, so pick whichever Mirror of Life you already have unlocked.

Route 1: From the Central Sewer Drain Mirror of Life

Fast travel to the Mirror of Life checkpoint inside the Central Sewer Drain. This is the closest save room to the relic and your starting point for the climb.

Central Sewer Drain Map View — The Central Sewer Drain map with the Mirror of Life checkpoint highlighted, your starting point for the climb. Shown at 00:30 in SpookyFairy’s video. Image: KONAMI

Leave the mirror room to the right into the Sewer Reservoir. Cross the platforms and ride the grapple points to climb through the upper corridor.

Move across the flooded chamber, jumping between platforms and swinging on the grapple nodes past the statue, then exit through the left portal into the red-lit Sewer Entrance and on into the Central Sewer Drain.

Work through the spiked-wheel hazard course. Use aerial dashes and grapple anchors to stay off the floor spikes and reach the elevated ledge holding the chest.

Route 2: Descending from the Prison Tower

If you have the Prison Tower Mirror of Life unlocked above, travel there instead and drop down. Descend south through the vertical shafts into the Central Sewer Drain, then head left into the chest chamber.

Prison Tower Map Pathing — The Prison Tower map with the descending route marked, showing the drop south into the Central Sewer Drain. Shown at 00:36 in SpookyFairy’s video. Image: KONAMI

Open the chest and equip the relic

Reach the chest on the upper ledge and open it to collect the Twilight Gem. The relics tutorial prompt appears the first time, explaining the relic slots. Slot the Twilight Gem into the first open relic slot to apply its damage bonus.

Chest Platform In-Game View — Rose beside the opened chest on the Central Sewer Drain ledge, with the spiked pit on the left and the barred waterfall grate on the right. Shown at 01:06 in SpookyFairy’s video. Image: KONAMI

You know it worked when the item popup shows the Twilight Gem card with its stats and the “Hold to Equip” prompt, and the relic fills one of your equipment slots. From there, cast a spell in combat and your next three seconds of attacks land for 30% extra damage.