While on patrol, the Basroil and another assault ship, the Seigroil, are hit by enemy mines. They wind up adrift, stranded in Plane Space, with no sensors and systems failing throughout both ships.
They come up with a plan to transfer all the crew and usable materials from the Seigroil to the Basroil, but once they do, the Basroil crew learns that the Seigroil bridge crew is trapped and cannot escape. Now, alone in the dark, the Basroil can see some unidentified ships coming toward them. But are they friend or foe?
平面宇宙内の移動速度は、時空泡内の質量に反比例する。そのため、戦闘で時空泡内に大量の浮遊物を抱えたバースロイルは、同じ状況の僚艦セーグロイルと共に、本隊から遅れて帰還することになった。
