In a previous post I explained my approach, my world view if you will, to the beings that populate the book THE WORST TRADE.  The link to that post is here. In this post I’ve provided a rundown of the alien species that appear in the book in one way or another and not necessarily in order of importance to the story.  I’m also adding a little piece on the Drake Equation (fact).  The Drake Equation is an early attempt to estimate the number of worlds in our own Milky Way galaxy that may hold intelligent and communicative life.  Here is a Wikipedia page on the Drake Equation.  This theory has a few issues, mainly that some of the variables are overly broad, unknown to science as yet, or both.   To be fair, it is said that Dr. Drake, created the equation to plant the seed for further investigation.  There are a lot of what ifs and additions to the original 1961 equation.  Many of the curious and interested have run with the concept.  They are worth looking at.


“…used to their appearance. Most of the pictures and videos floating around on the internet nowadays– it’s them. There are only two other main types of Grays. There’s the very small, stumpy frog-faced ones who do most of the maintenance tasks. We call them Taskers, and then there are the real tall Grays, about seven feet or more who act pretty much like soldiers and look like the common ones only taller. Don’t mess with any of them though. And don’t force them over their moral protocol of defense which says…” General Holt

This is a pull from the book, a quote by one of the protagonist in response to a MUFON inquiry.

Copyright 2013 – A. Haver – all rights reserved on all works on these pages.


Alien Types of  “The Worst Trade”

All are more technologically advanced than humans except the Thon.

Common Grays – are the main type of Gray in the book. Like all Grays they are telepathic and have never been heard to utter an audible word.  They are the old original form of this species and are humanoids. They are about  5 feet tall, with large heads, large dark eyes like a rodent – no iris or white areas, sallow gray skin, frail looking, with four fingers and four toes. They are pretty much in control of all things related to this species and interactions with other species.

Tall Grays – look almost exactly like the Common Grays, except they are very tall and willowy, most over seven feet.  They are skittish and prefer their own company, even amongst other Grays. They mostly serve a function similar to guards and soldiers.  If their moral protocol of defense is crossed, they can be downright vicious, easily able to kill a human without need for a weapon.

Tasker Grays – as the General said, are stumpy and frog-faced humanoids – more like compressed faces about 3 feet tall maximum.  They generally work on the Gray ships and in the background of installations taking care of the maintenance and deployment functions.  They control small robots for most tasks, but themselves are highly tactile.

The Errans, a.k.a, The Tall Whites – are a humanoid species with a pale, nearly albino-like appearance.  They are frail-looking by human standards, but with features very similar to humans.  Their hair is located in the same areas as a human’s, but is very thin and so white as to be clear.  They have eyes similar to ours, but are slightly larger in every aspect.  Our height’s and proportions are the same with one exception: As they near the end of life, they start growing again, but also grow weaker as they reach an incredible height of about 8 feet tall and more near death. 

The Reptilians – are a humanoid form with reptilian features evidenced in the formation of the skin and genitalia. They are slightly more robust than the average human and far more physically capable than any human.  Their reptilian nature allows them to change form somewhat, much like a cobra is capable of, but not shape-shift into other forms.  They are purely biological like us and in many ways similar to humans.  They can be quite emotional.  Like Tall Grays, you don’t want to tangle with these guys either.

The Thon – are humanoids with very long legs and wide muscular thighs.  Their torso would seem truncated to a human, too narrow across the shoulder, but still very muscular.  Their hair is jet black, shortish and spiky against pale skin.  Their world is darker than Earth, and they as well have eyes larger than a human, but very human-like and expressive.

The Nimes  – are humanoids with long torsos, a very high forehead and long proboscis, with wavy yellow-orangeish hair. Their torso seems far too long for their bodies.  They are about five and a half feet tall with large feet.

Pleiadians – are nearly the spitting image of modern humans in all of our varieties except for the placement of their ears which are lower, smaller, sometimes tufted with short silky hair, and set further back than a human.

Carnazians – are humanoids of our same height.  You will be hard pressed to find a male as most are female.  They have a voluptuous form in the extreme and are quite fleshy beings. Strikingly, they have beautiful eyes of a human form, but with crystal clear large iris’ nearly obscured by their their fullness.

Annunaki – alas, a non-humanoid and one that exists – well, read the book. They are more accurately described as amphibianoids if there is such a word.  Their skin is slimy and partly translucent in places revealing blood vessels and muscle.  You wouldn’t want to touch one.  In fact, you wouldn’t ever want to encounter one and I hope you never do.




N = R* * fp * ne * fl *fi * fc * L

R* = the average rate of star formation in our galaxy
fp = the fraction of those stars that have planets
ne = the average number of planets that can potentially support
life per star that has planets
fl = the fraction of planets that could support life that actually
develop life at some point
fi = the fraction of planets with life that actually go on to develop intelligent life (civilizations)
fc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into
L = the length of time for which such civilizations release detectable signals into space

As you can see above, the last four variables are the most problematic because they are unknown. Current developments with Kepler data is rapidly helping to narrow down fl as mentioned in another post.  The near future should be interesting, and in the meantime sci-fi writers can have a field day.

If anyone out there is pythonista or wants to try it, here is the Drake Equation as a python script to play with.  Run it and enter any variables that you’d like.

Get the Book: Amazon or Smashwords in all formats.



Drake Equation – 1961

Try various values and refer to some of the latest estimates for input

suggestions, such as 7.00 for star formation per year. Also, remember to

use a decimal format like #.##. Obviously, this is a very basic script without

any new expressions since the original equation.

If you are new – get Python on the web; install Python; make a new folder for this

equation program and others you will create; place this program file in the folder;

duckduckgo search how to put your new folder on the path; find out how

to open up a terminal; cd or otherwise navigate to the folder in the terminal

window, then type without the quotes, ‘python’

then just answer the prompts.

If using the latest Python 3.x version, use parentheses to print like this –

print (‘The estimated number of communicative alien neighbors in our Milky Way is’, N, ‘alien worlds’)

@author: A. Haver


def main():


R = input(“Enter the ave rate (*use decimal format (#.##), try 7.00) of Milky Way star formation per year: “)

fp = input(“Enter the decimal fraction (*use number close to 1 (#.## format) of stars with planets: “)

ne = input(“Enter ave number of potential life planets (*try (0.01) per star with planets: “)

fl = input(“Enter fraction of potential life planets that will develop life: “)

fi = input(“Enter fraction of life planets that develop civilizations: “)

fc = input(“Enter fraction of civilizations whose signals are detectable: “)

L = input(“Enter length of time alien civilization signals can be detected: “)

N = R*fp*ne*fl*fi*fc*L #The original Drake Equation

print ‘The estimated number of communicative alien neighbors in our Milky Way is’, N, ‘alien worlds.’

if __name__ == ‘__main__’:



About ahaver1

Author of science-fiction; translator of social and science relevance; dot connector.

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