Quick answer
A first edition of Killer Dolphin (UK: Death at the Dolphin) by Ngaio Marsh (Little Brown, 1966) is identified by: US Little, Brown, Boston 1966, published as Killer Dolphin. True first is the US Little, Brown edition (1966) as Killer Dolphin, preceding the UK Collins edition (1967) titled Death at the Dolphin.
Checklist — a true first has these:
- US Little, Brown, Boston 1966, published as Killer Dolphin
- The UK Collins edition followed in 1967 under the title Death at the Dolphin
- The US edition preceded
- The 24th Roderick Alleyn novel
- Publisher imprint reads Little Brown
- Not a book-club edition (see below)
| Author | Ngaio Marsh |
|---|---|
| Publisher | Little Brown |
| Year | 1966 |
| True first | US edition |
| Format | Hardcover (trade) |
| Key point | US Little, Brown, Boston 1966, published as Killer Dolphin |
| Book-club edition exists? | — |
The points of issue
- US Little, Brown, Boston 1966, published as Killer Dolphin
- The UK Collins edition followed in 1967 under the title Death at the Dolphin
- The US edition preceded
- The 24th Roderick Alleyn novel
How Little Brown marked a first edition
- “First Edition” or “First Printing” statement
- Number line (late 1970s–present)
Full Little Brown first-edition guide →
How to verify your copy, step by step
- Find the copyright page — the verso (back) of the title page.
- Check for a number line or dated printing — the lowest number present is the printing; a dated first printing with no later printings listed is the tell.
- Verify this is the US true first — not a later-market or reprint edition.
- Rule out a book-club edition — a blind-stamp on the rear board or a jacket with no printed price marks a book-club copy.
- Photograph four things — the front cover, spine, title page, and copyright page — the standard record for identification.
The dust jacket
For a collectible first edition the dust jacket matters as much as the book. Confirm the jacket is present and unclipped — the printed price should still be at the corner of the flap (a clipped corner or a price-less flap can indicate a book-club issue). First-state jackets can differ from later ones in the cover art, blurbs, or review quotations; where a specific first-state jacket point is known for this title it is noted above.
Binding & format
Where multiple bindings exist, the hardcover trade issue is usually (but not always) the precedence copy — confirm against the points above. Later printings often show cheaper cloth, thinner boards, or simplified spine stamping. A simultaneous signed or limited issue, when one exists, is a distinct state from the trade first.
Is this the true first?
True first is the US Little, Brown edition (1966) as Killer Dolphin, preceding the UK Collins edition (1967) titled Death at the Dolphin.
Telling it from reprints & book-club editions
Later printings and reprints follow the respective first editions.
Frequently asked questions
Is my copy of Killer Dolphin (UK: Death at the Dolphin) a first edition?
A first edition of Killer Dolphin (UK: Death at the Dolphin) by Ngaio Marsh (Little Brown) is identified by: US Little, Brown, Boston 1966, published as Killer Dolphin.
How do I tell the first printing from a later one?
Check the copyright page. A stated first edition, a number line ending in 1, or a dated first printing with no later printings listed is the key. True first is the US Little, Brown edition (1966) as Killer Dolphin, preceding the UK Collins edition (1967) titled Death at the Dolphin.
Is the book-club edition the same as the first?
Later printings and reprints follow the respective first editions.
I have a first edition of Killer Dolphin (UK: Death at the Dolphin) — what should I do?
If you are clearing books in the Albuquerque area, the New Mexico Literacy Project offers free pickup, any condition, and makes sure collectible copies are identified rather than lost. To sell, see the author’s collecting guide. Either way, nothing collectible ends up in a landfill.
Glossary
- First edition
- Every copy printed from the first setting of type. Collectors usually want the first edition, first printing (the true first).
- First printing / impression
- A single press run from that setting. The first printing is the earliest and most desirable; later printings are still the first edition but not the true first.
- Number line (printer's key)
- A row of numbers on the copyright page (e.g. 10 9 8 7 6 5 4 3 2 1). The lowest number present is the printing — a line including 1 marks a first printing (Random House deliberately ends at 2).
- Points of issue
- Specific physical details — a stated edition, a number line, a typo, a jacket state — that identify the true first printing.
- Book-club edition (BCE)
- A reprint made for a book club. Tells include a blind-stamped dot or square on the rear board and a dust jacket with no printed price. Not the true first.
- First thus
- The first appearance of a particular version (first paperback, first illustrated, first U.S. printing) — a first of that kind, not the first edition of the work.
Related first editions
How to cite this page
New Mexico Literacy Project. “Is Killer Dolphin (UK: Death at the Dolphin) by Ngaio Marsh a First Edition? Points of Issue.” NMLP First-Edition Identification Reference. Reviewed 3 July 2026. Retrieved from https://newmexicoliteracyproject.org/first-edition/killer-dolphin-uk-death-at-the-dolphin. Licensed CC BY 4.0 — part of the open Canonical First-Edition Points of Issue dataset.