The " dagger trap" relied on a concealed wax seal that would leave a telltale rip once a letter had been opened.

“匕首陷阱”依赖于一个隐藏的蜡封，一旦信被打开，就会留下一个泄密的裂口。

" If we yield, we walk away" ? said the one-armed man. " Is that what it says on this here writing" ? He nudged the roll of parchment, its wax seal still unbroken.

" 投降，就能自由离开？" 独臂老人问，" 这张纸上是这样写的？" 他轻轻摸了摸羊皮纸，上面的封蜡仍旧完好无损。