he "Thunderbolt" is a wooden-structured spacecraf...

The "Thunderbolt" is a wooden-structured spacecraft, sporting jellyfish-like sails and surrounded by metallic tentacles that resemble a black leaf. Ahead lies a dark cyan thunderstorm, with clouds churning in a morbid yet magnificent shade of purple-black, occasionally pierced by silver streaks of lightning. On the deck, several figures are straining to adjust the billowing sails.