Grafton (Sue) 'A' is for Alibi, first English edition, signed by the author, 1986; and the following 3 books in the series, all signed (4)

£200 · At auction with Forum Auctions · No longer available

Grafton (Sue) 'A' is for Alibi, 1986; 'B' is for Burglar, 1986; 'C' is for Corpse, 1987; 'D' is for Deadbeat, 1987, first English editions, signed by the author on titles, usual light marginal browning, original boards, slight bumping to spine tips, dust-jackets, fine copies, 8vo (4) *** An excellent run of the first four titles in the author's Alphabet Murders series.

Found via Rare Books Intel, a search across rare-book dealers, auction houses and marketplaces worldwide.