TY - BOOK AU - Allard, Harry. AU - Marshall,James TI - Miss Nelson is missing! SN - 9780395401460 U1 - EF ALL /I PY - 1977/// CY - New York PB - Houghton Mifflin Company KW - School stories KW - sears KW - Teacher KW - Fiction N1 - K-3 N2 - The kids in room 207 take advantage of their teacher's good nature until she disappears and they are faced with a vile substitute ER -