520 Purgatory's Son

...

Wooo wooo wooo!

Layer by layer, the sound of horns echoed on the decks.

Amidst the varying urgent calls of Purgatory's Son sailors, passengers on the upper three decks slowly or quickly returned to their cabins along the gangways.

Swoosh swoosh swoosh!

Streams of magic runes surged as the ceremonial field activated.

If viewed from high above,

the conch boat, with its metallic luster, now resembled layers upon layers coated in thick honey.

After setting up this solid defense,

an even sharper sound of horns rang out.

Three minutes later,

the conch boat—flying the flag of one of Purgatory's Son's cities—resolutely sped forward—

There,

the surface, seemingly flowing with liquid silver, abruptly bent at a ninety-degree angle downward, forming an immensely majestic astral waterfall.

Further down,

in the downstream of the River of Silver,