As Lucas was in the past, apparating out of the land of the dead was not hard and he appeared in the land of the living. His appearance changed to the mortal form and he walked around the land of the Bonelake. He had told Catina that he would need only an hour time to fix things.
There were only two things to fix, one was to let Crane know that he was leaving from here where he had burned the note so that it would reach directly in his creator's hand. The second was to pick the book from the dead to place it in the living world so that it could keep circulating just like it had happened in reality.
The only change this time was that he had sent a message to Crane.