In The Picture of Dorian Gray, I came across the following passage, spoken by Basil Hallward:
There is nothing that art cannot express, and I know that the work I have done since I met Dorian Gray is good work, is the best work of my life. But in some curious way — I wonder will you understand me? — his personality has suggested to me an entirely new manner in art, an entirely new mode of style.
I fail to understand the lack of a comma separating I wonder and will you understand me. Doesn't it make it sound somewhat awkward? Or is it part of Wilde's style? Or perhaps simply a printing error, which survived through successive editions?
Googling the sentence only returns pages quoting The Picture of Dorian Gray, hence bringing little information.
Can someone explain this to me?