condiments

I refer you to
http://newyorktrilogy.livejournal.com/
where the following is posted:

"Do you have a book in stock called: 'Mayo'?"And there I was, like a fool, looking for a book that intrigued me by the title alone. There was I, expecting to be rewarded with a Mark Kurlansky-esque insight into the world of Mayonnaise - a la 'Cod' and 'Salt'."It's called Mayo: The Unknown Story"And there I was, like a fool, now even more intrigued, excited by this historical investigation into the very beginnings of the condiment... until..."And it's by someone called '...Chung Chang?' and '...John Holiday'."Oh.

Only today, in another unnamed, unmentioned, uncited and positively ANONYMOUS branch, the same request was made for 'Mayo' but then the customer added:

"It's the sequel to the curious incident of the dog in the night time."