In a field crowded with unlikely sleuths, Israel Armstrong--chubby, nervous, clumsy, headache prone, underachieving--stands out. Jewish and vegetarian, he stands out even more when he accepts a job in Tumdrum, Northern Ireland, where it's assumed that, if he's not Protestant, he must be Catholic. Hired to be a librarian, he arrives to find his library closed and his position retitled "Outreach Support Officer"--driver of the decrepit mobile library. Worse, the books he's supposed to fill it with have disappeared. Worse yet, his new boss will accept his resignation only if he finds the missing books first. Between Israel's inept sleuthing and the general unhelpfulness of the locals, it looks as if he'll be in Tumdrum a long, long time.