The Blue Avenger is Alger Wilson's personal sailing vessel, introduced in Volume 2 as a wind-powered ship from the Fifth Epoch. Throughout the series, it serves as his primary means of transportation and a symbol of his maritime identity. The ship's role expands as Alger's status and capabilities grow, reflecting his journey from a cautious Beyonder to a more prominent figure in the Tarot Club.

The Blue Avenger is Alger Wilson's personal sailing vessel, introduced in Volume 2 as a wind-powered ship from the Fifth Epoch. Throughout the series, it serves as his primary means of transportation and a symbol of his maritime identity. The ship's role expands as Alger's status and capabilities grow, reflecting his journey from a cautious Beyonder to a more prominent figure in the Tarot Club.