Boatchecks on the Wrenhaven

Boatchecks on the Wrenhaven is a book found in The Knife of Dunwall.
==Transcript==
[A letter excerpted from a book on members of the City Watch assigned to the Wrenhaven River]
Dearest Rutherford,
Your latest writing brought me a mix of sadness and delight.
I was sorry to hear of the passing of your friend Corkran, from Morley. He was undoubtedly a good man and a worthy ally in your work with the City Watch in Dunwall. I know that the River Patrol is a difficult assignment, especially during these times, but it is important work. So given all that you've told me, I can only assume Corkran was as brave as you are, my younger brother.
It saddens me that such a vile organization as the Dead Eels even exists outside the realm of those lurid gothic novels we read as schoolchildren. That you and your men should have to face them out on the waters of the Wrenhaven is just terrifying. Boats must be checked, I know, I know. But if you should be harmed while ensuring some Tyvian fur trader is the carrying the correct tax papers, I will never forgive this new Lord Regent and his flurry of laws.
You talked of adventure when you signed on and danger seems to excite you, but you'll forgive me if I hope to see your patrol transferred further west, nearer to Kaldwin's Bridge where the military presence is stronger and the smuggling gangs fear to ply their wicked trade. I've gathered this much from the newspapers, but perhaps there's nowhere safe in Dunwall right now, certainly along the river.
It pains me to imagine the customs crew at the checkpoints near your patrol being so shorthanded. My mind reels at the thought of how anything else can take priority over my brother's life. I tell you, what I wouldn't give to be in charge of allocating the security details. You'd have a hundred men at your call. But I know that is impractical.
Please write again when you can. All of us look forward to your words, and I often share them after dinner with our friends and those visiting us here in Driscol. May your next letter bring news of the eradication or imprisonment of Lizzy Stride and her cursed Dead Eels.
Stay safe and remember us always.
Your sister, Pearl
==Location==
It can be found inside the break house in the Rothwild Slaughterhouse yard.
de:Schiffsüberprüfungen auf dem Wrenhaven
zh:雷恩黑文河上的船只检查（书籍）
ru:Проверка_судов_на_Ренхевене
Category:The Knife of Dunwall Books