Design

With the aid of artificial intelligences, which permeated the worlds of the Jack Mack stories, design and its implementation could be carried out somewhat more quickly than today. Thus new vehicles, space craft, etc. could have a fairly rapid turnover in production. The primary brake on this would be the time spent on the transporting of new designs to other worlds for use or production. Basically, stuff could be built quickly! I’ve certainly hinted at this by mentioning various craft used by my characters but it is not something to be dwelt on at length.

Keeping Cool

I have mentioned cooling systems on space craft a few times in the Jack Mack stories, but never delved into it. It was never necessary to the story. I have noted that the heat is not generated from the thrust tubes in a typical engine but by the force fields that contain their power. From a practical standpoint, that comes to much the same thing and it is, admittedly, not a tremendous amount of heat.

It is, of course, difficult to dissipate heat in a vacuum. None of it flows out of the the rear of the engines, as with a jet. Indeed, one can stand quite close to business end of most thrust tubes (too close might knock you down, or worse). Almost all engines do have a vacuum cooling system, involving some sort of radiant heat dispersal via fins or the like. This would be a back-up or auxiliary to normal cooling systems, though small low-power engines might need nothing more (including at least some maneuvering units).

Jack’s crippled W-4 he piloted into Thule Station had a very minimal vacuum system to save weight and space. He could have limped along with it after his main unit gave out, but coming out of jumps might have been hazardous.

More robust main systems are needed in most ships, involving the circulation of a coolant. Even more so in atmospheric ships, which tend to incorporate larger pumps to keep things circulating. Fans, too, though those are useless in space!

 

Blind Jump Release

Today, Oct 31 2025 is the official release date for my latest Jack Mack science fiction novel, Blind Jump. At the Arachis Press store or go to arachispress.com for both print and free ebooks.

https://www.lulu.com/shop/oliver-davis-pike/blind-jump/paperback/product-e7dg5mp.html

Updates

In preparation for the release of the fourth Jack Mack novel, 'Blind Jump,' (on October 31, 2025) we have been going through the previous novels in the series, mostly proofreading. No matter how many passes we make, there always new mistakes to find! The first novel, 'Among the Many Worlds,' is now up in revised form, and we will continue to work through the others. I did straighten up the usage of 'hours' in the book, which did not always stick to the Scotian format of twelve hour days, i.e. hours twice as long as those we use. That's all proper now, and the other two novels should be correct as they are. But we'll check to be sure!

Blind Jump in Print

We have received and approve of a print copy of Blind Jump. All is 'go' for the October 31 2025 release of this fourth Jack Mack sci-fi novel; in fact, we could put it out there right now but we'll wait for the official date! Expect notices to go up here and there over the next couple weeks, reviews from pre-release readers, and so on. As ever, the ebook versions will be free to download.

Here is the finalized cover: 

Blind Date

We have an official release date for Blind Jump: Friday October 31, 2025. Yes, Halloween. It should hold; unexpected problems with printers do have a way of popping up but if anything holds up the print edition, we would still release the ebooks on time.

Those will be in PDF and EPUB, and, as always, free. Of course, the print version costs! All from Arachis Press (arachispress.com). 

Blind Jump Draft

I have a finished draft of Blind Jump. It came to  about 59,000 words total, which not at all a surprising number and fairly much in line with the  three previous Jack Mack novels:

Among the Many Worlds 53,800 words

Jumping Jack 70,000 words

Dim Distant Stars 56,100 words

It is, of course, likely my count will change with revisions, especially during the first run through. My books typically grow at that stage as I find things that need a tad more explanation or description; I do tend to emphasize dialog in my initial drafting.

But the story is set. No revisions to the plot will be necessary, no plot holes need filled. I do catch those things as I go and its only the language that needs a little polishing. Expect a release date to be announced soon. 

Blind Blurb

 I came up with a tentative back cover blurb for BLIND JUMP:

____________ 

Blind Jump: a leap into space toward an unknown star

‘Jumping Jack’ McFee and deadly Thulean agent Anna Gallen are finally wed and off on a tour of the ‘old worlds.’ But conspiracies continue to fester behind them and enemies pursue them even to their honeymoon on Earth.

They must unravel the tangled plots of espionage and betrayal, and their own future together, as Anna and Jack take their blind jump into a new life. 

Blind Jump Covers

Mock-ups of a couple possible covers for the upcoming Jack Mack novel, BLIND JUMP. I may use one of these (with possible further refinement) or be inspired to go some completely different direction.

 

addendum, Sept 23: I went to a completely different cover illustration. I'll reveal that in a bit.

Near-Earth

Up until now, I haven't needed to concern myself with 'known' stars in the Jack McFee novels, nor with those that lie close to Earth. Scotia and the other places we visit are quite far from 'the old worlds.' The only known stars I've named were Sol itself and Sirius. I expect to visit both in the current novel in progress, during Anna and Jack's honeymoon voyage. 

This means I've needed to research the stellar systems close to Earth, particularly Tau Ceti, Alpha Centauri, and Epsilon Eridani. Do they have habitable planets? Which would be on Jack's route to Earth? He can jump to red dwarfs rather than any of these, so I don't necessarily have to commit to anything when it comes to human colonies or even a human presence anywhere. 

I doubt I will posit preexisting life in any of those three systems. None seem particularly suitable to its development. I could change my mind about that. At this point, my 'canon' is that nothing more advances than microbes has been found on any planet humans have explored. 

I do intend to visit Sirius. Jack is interested in it from an historical standpoint, as the system where serious mining of ultra-massive elements began, fueling further travel outward. He is working on his dissertation, after all, even if Anna should rightfully get most of his attention!

Public Office

Jack McFee’s family is wealthy and influential, but its members have always eschewed direct politics. They do not run for office. They have, however, sometimes served in bureaucratic and diplomatic roles. Both of Jack’s parents became part of the wartime bureaucracy — which served to pull Jack into his own roles during the war.

Similarly, his cousin Errol fills a diplomatic role in the immediate postwar period, establishing trade agreements between the now-neutral Scotian Group and other organizations and associations. He may well continue in an occasional trouble-shooter role but is more likely to be looking out for his family’s interests.

And what of Jack? Officially, he furthers his education for four years or so after the end of the war, while still doing the occasional bit of espionage. As for his employment after that, nothing is set. He could well end up a diplomat himself — or the husband of one. Anna Gallen, whom he marries in ‘Blind Jump,’ (WIP) does have her connections to the Thulean government. Or he could teach in some college or another, a la Indiana Jones, between adventures. He could even end up at the helm of the McFee Concern down the line.

But be assured, he will never run for public office. McFees don’t do that.