How to correct PlantUML Line Path

I created this diagram using the following code. But as you can see, the lines going from (Cancel Order) and (Place Order) to (Publisher) decide to take a terribly rounded path to get their, instead of going straight to the right and then down to publisher. I tried using manual direction commands like "-down" but none of them seemed to help. Does anybody know how to fix this?

And here is my code. I appreciate any help. Thank you.

@startUML EBook Use Case Diagram
left to right direction
Actor Customer as customer
Actor EBook as ebook
Actor Publisher as publisher
rectangle "Book Catalogue" {
    together {
        Actor "Book Database" as bookLog
        (Retrieve Information) as getBook
        customer -- getBook
        getBook -- ebook
        getBook -- bookLog

        (Update Catalogue) as updateCatalogue
        ebook -- updateCatalogue
        updateCatalogue -- bookLog
    }

    together {
        (Place Order) as order
        customer -- order
        order -- ebook
        order--publisher

        (Cancel Order) as cancelOrder
        customer -- cancelOrder
        cancelOrder -- ebook
        cancelOrder--publisher
    }
}

(Ship To EBook) as shipEBook
shipEBook -- publisher
(Ship To Customer) as shipCustomer
customer -- shipCustomer
ebook -- shipEBook
shipCustomer -- ebook

(Return to EBook) as returnCustomer
(Returnto Publisher) as returnPublisher
customer -- returnCustomer
returnCustomer -- ebook
ebook -- returnPublisher
returnPublisher -- publisher

@endUML

To make a connection less important in the layout, use [norank], e.g., a -[norank]-> b