It simply shouldn't be legally possible to sign a co-author onto a work when a) the work has already been published and b) the original author/s is/are dead and didn't pen it into their Will. This just makes possible mountains of fraud with the author being unable to defend their copyright. Also the supposed "co-author" is dead. Otto isn't to lay claim to authorship. Anne didn't give him authorship. Why exactly does anyone else have the right to lay claim to this copyright?
It simply shouldn't be legally possible to sign a co-author onto a work when a) the work has already been published and b) the original author/s is/are dead and didn't pen it into their Will. This just makes possible mountains of fraud with the author being unable to defend their copyright. Also the supposed "co-author" is dead. Otto isn't to lay claim to authorship. Anne didn't give him authorship. Why exactly does anyone else have the right to lay claim to this copyright?