It is very probable that had I visited Spain from mere curiosity, or with a view of passing a year or two agreeably, I should never have attempted to give any detailed account of my proceedings, or of what I heard and saw. I am no tourist, no writer of books of travels; but I went there on a somewhat remarkable errand, which necessarily led me into strange situations and positions, involved me in difficulties and perplexities, and brought me into contact with people of all descriptions and grades; so that, upon the whole, I flatter myself that a narrative of such a pilgrimage may not be wholly uninteresting to the public, more especially as the subject is not trite; for, though various books have been published about Spain, I believe that the present is the only one in existence which treats of missionary labour in that country. Many things, it is true, will be found in the following volume which have little connexion with religion, or religious enterprise; I offer, however, no apology for introducing them. I was, as I may say, from first to last adrift in Spain, the land of old renown, the land of wonder and mystery, with better opportunities of becoming acquainted with its strange secrets and peculiarities than, perhaps, ever yet were afforded to any individual, certainly to a foreigner; and if in many instances I have introduced scenes and characters perhaps unprecedented in a work of this description, I have only to observe, that, during my sojourn in Spain, I was so unavoidably mixed up with such, that I could scarcely have given a faithful narrative of what befell me had I not brought them forward in the manner in which I have done. It is worthy of remark, that, called suddenly and unexpectedly “to undertake the adventure of Spain,” I was not altogether unprepared for such an enterprise. In the day-dreams of my boyhood, Spain always bore a considerable share, and I took a particular interest in her, without any presentiment that I should, at a future time, be called upon to take a part, however humble, in her strange dramas; which interest, at a very early period, led me to acquire her noble language, and to make myself acquainted with her literature (scarcely worthy of the language), her history, and traditions; so that when I entered Spain for the first time I felt more at home than I should otherwise have done.