For fans of Ian Fleming’s James Bond, no acquisition could be more rewarding than a complete set of the author’s first editions about the famed secret agent. If you’d prefer someone do the legwork for you, book dealer Dr. John Atkinson has got you covered. The UK-based seller is offering all 14 of Fleming’s Bond books for a whopping $600,000.

According to the BBC, the titles in the collection have considerable value because of their good condition—with dustjackets intact—and because 10 of the 14 titles feature personal inscriptions from Fleming to friends and associates, including onetime girlfriend Lisl Popper. Fleming reportedly didn’t sign many copies of his books, making his autographs here something of a rarity.

The original Bond books also command a premium because the initial print runs of the earliest titles—like 1953’s Casino Royale—were limited in light of the fact Bond had not yet become a worldwide sensation.

The buyer will also receive 1936’s Field Guide to Birds of the West Indies, written by ornithologist James Bond. Fleming saw a copy of the book and derived his spy’s name from the author.

[h/t MovieWeb]