"We made the discovery in consequence of his having, in his eccentric way, an appointment with you at twelve o'clock at night, when you were to explain some writing to him as you had often done before on account of his not being able to read. 
"We made the discovery because he had, in his eccentric way, an appointment with you at twelve o'clock at night, when you were to explain some writing to him as you had often done before on account of his not being able to read. 