Order of the Amber books/stories

[Finarvyn]

This is from Wikipedia:

The first five books describe the adventures of Prince Corwin of Amber:
1970 Nine Princes in Amber
1972 The Guns of Avalon
1975 Sign of the Unicorn
1976 The Hand of Oberon
1978 The Courts of Chaos

The second series tells the story of Corwin's son Merlin (Merle), a wizard and computer expert. These volumes are:
1985 Trumps of Doom
1986 Blood of Amber
1987 Sign of Chaos
1989 Knight of Shadows
1991 Prince of Chaos

Zelazny also wrote several short stories set in the Amber multiverse. Listed in Zelazny's intended order, with first published dates shown, these include:
2005 "A Secret of Amber" [story fragment co-written with Ed Greenwood between 1977 and 1992]
1985 "Prolog to Trumps of Doom"
1994 "The Salesman's Tale"
1995 "Blue Horse, Dancing Mountains"
1994 "The Shroudling and The Guisel"
1995 "Coming to a Cord"
1996 "Hall of Mirrors"

The latter five of these seven short stories form one tale, taking place after Prince of Chaos.

[Finarvyn]

What I find most interesting is the placement of "A Secret of Amber".

1. You might argue that it's not canon at all and ought to be taken from the list.

2. It always seemed like an orphan story and thus would occur sometime at the end of the series, whereas this list puts it prior to "Prolog to the Trumps of Doom" (which one can clearly argue would occur in between Corwin's and Merlin's books).