新人任务求助~~~~how to frame a templar~~~~~~~~~~~~

yooooab018

如题，，俺是在第二章开始的时候碰到的，在绞刑架上那个俩个卖战士物品商人附近的箱子上面，是个卷轴一样的东西，这是官方对这个任务的描述，俺用google翻译也是看不懂，，，The Docks
REQUIREMENTS:
You must have persuaded Cullen to retain Keran’s services
at the end of the Enemies Among Us quest.
Accept the quest from Mistress Selby’s Board – see The
Underground Railroad for details.
WALKTHROUGH:
Travel to The Hanged Man during daylight hours and
speak with Ser Roderick. Pick any one of the available lies
to cast aspersions on your victim, then head to the Gallows.
Listen to the Harbormaster’s Assistant, then interact with
the Delivery Order. Choose to write in Conrad’s name,
then deliver the letter to the nearby Dockworker.
Return to Mistress Selby. The letter that arrives at her
board will explain the consequences of your actions.
希望高人帮俺翻译下，最好有知道怎么做的大神帮忙~~~~~~跪谢~~~~~~