Sentence:  The <WSD>night</WSD> after reading her letter about her surgeon uncle - it must have been late in September - I had a vision of myself returned in ragged uniform from The Front , nearly dying , my head bandaged and bloody , and Jessica bending over me , the power of her love bringing me back to life . 
Meaning of the word marked with <WSD> tags:  the time after sunset and before sunrise while it is dark outside