Friday, 8 June, 2018
On 27 September, Cornelia's novella The Glass of Lead and Gold is coming out with Cornelia's UK press Pushkin. It's a beautiful story set in an alternate London, and is full of magical characters you may have seen in the InkWorld and MirrorWorld stories!
Stella on 7 October, 2018
Can you read this as a standalone? Without having to read any books in the Mirrorworld series?
Yes, Stella 
Charlotte on 21 September, 2018
When will it be published in America?????
It IS already available in the US, Charlotte.
Xwodas on 29 August, 2018
Is this originally published in English or is it a translation, and if so, what is the German title?
It IS originally published in English, yes.
Austin on 19 July, 2018
Will it also be released in the US?
Cornelia has not sold the rights yet, but, yes, it will be published in the US some time soon.