I read the paperback version but don't recall the name, only that the cover was primarily white. It's been at least 8 years since I read it, but the book may be a little older than that, 1995-2007?. It takes place in about the same time frame, as the setting, technology and procedures seem modern, not overtly futuristic nor noticeably in the past.

The protagonist is a woman, middle age or slightly younger, who is an astronaut and biologist. The story starts on Earth describing the asteroid, how it was recovered from deep in the ocean, and the unknown black gelatinous masses contained within.

It goes a little into studies performed, i.e., injected in frogs and mice - which the former comes back as a major plot point towards the end, as the aliens have a vulnerability to 'pregnancy hormones' from the frog DNA they integrated. Skipping the bulk of fluff to the memorable bits, she and her crew are sent to space with this payload of unknown gunk in vials and told to run tests, such as how it reacts to weightlessness and what happens if it's injected in lab mice, with the former causing it to grow and leave dormancy induced by the weight of the ocean(also happens on earth, but slower?) and the latter ending with mysterious symptoms, increased aggression and rodent deaths. Along the way, it gets introduced to the crew, where the effect is much the same, though they seem oblivious and pretty careless, storing the bodies of dead crew and animal alike in bodybags with little caution, despite the massive swelling caused by the egg's growth. Unsurprisingly, this ends badly when the erupt from bloated corpses, which are then released when the chamber is opened- eventually infecting the whole crew, who can't avoid the 'fish stinking' globs now free floating around the craft.

There are a few details that I can't place sequentially but remember vividly, perhaps mid-book:

  • The one other woman, when her birth control wore out and succumbed to infestation, was restrained but still managed to bite and attack the rest of the crew, injuring at least two men but not the protag. One or both died not long after from their own infestation, but not due to injuries inflicted.

  • If carried to term the alien gestates 'in the spine' not needing the host to be alive, and emerges looking like a combination of the various previous hosts and generations.

Then late in the book, the last remaining crew member, our protagonist, commits suicide via crashing into the ground, I think by disabling the parachutes on the shuttle or some other safety function- how she did it might be mistaken, but I remember the suicide being a fairly important 'spare earth from this plague' sacrifice. Ultimately it was revealed that it was in vain, and that other organizations still had and were studying the eggs and the pitch black hybrid abominations spawned from them, so it ended with a somewhat fatalistic turn, though all of them carry the vulnerability.

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    You've done excellently for a first post, an extremely detailed post that will almost certainly be found by one of the identification experts. I've removed the comment at the end as it is redundant. +1 from me for an excellently detailed question.
    – Edlothiad
    Aug 10, 2018 at 7:49
  • Thank you! I suppose it was pretty extraneous but I wanted to get off on the right foot, just in case I did make a silly mistake :) Aug 10, 2018 at 9:48
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    [SPOILERS AHEAD] I actually finished reading this book literally three days ago, so this sounded very familiar :-) But in the version I read, the protagonist does not commit suicide. It turns out that the vulnerability from the frog's DNA was probably built in intentionally and she gets saved by injecting a specific frog virus delivered to the IIS by her almost-ex-husband. Earlier in the story though, one of the other protagonists tries to return home uninfected but gets destroyed by the military though. Other than that, perfect match; well described!
    – CompuChip
    Aug 10, 2018 at 13:38
  • @CompuChip Wonder if I'm misremembering and confusing the details or if there was an alternate ending. Probably the former, LOL. Aug 11, 2018 at 5:38

1 Answer 1


This sounds like a good match for Tess Gerritsen's Gravity. First published in '99, this matches your timeframe nicely, and the cover below is primarily white. From what I could find this is true of a number of other editions as well, maybe this is the one you remember.

enter image description here

The plot focuses on Emma Watson, an astronaut and biologist, currently in the middle of a divorce, who is sent as a last minute replacement on a mission to the ISS. They do experiments on microorganisms in zero-G that all start to go horribly wrong; one astronaut is removing a mouse from an experiment and gets some matter in his eye. He soon becomes violently ill; the culture continues to grow on and in him until, after he is returned to earth, a creature that is part mouse, part frog and part human emerges from his corpse.

There are two plot summaries here and here which provide a few more details that all seem to match; from my own memory I can confirm the gruesome scene with the bodybags on the ISS

  • That's definitely it, thank you! :D This book has been eluding me for quite a while. The details match perfectly, and the copy I had was with alt cover art, with the woman beside a corpse on a gurney. Funny how the mind forgets that kind of thing until you get a refresher- I only remembered it as being mostly white. Aug 10, 2018 at 9:39
  • @user14111 Yep, that's it, I saw it in google images when I was searching the name you gave. Also, I think its typical protocol to wait a day on most of the stack exchange communities I lurk (although I guess it doesn't have a necessity here, since there can't really be an answer more correct), but rest assured I will accepting your answer- it was spot on and very quick, thank you again. :) Aug 10, 2018 at 10:24
  • @ZhovekTheQuestioner Hey, it's not my answer, it's The Aurochs' answer; I'm just a meddlesome passerby.
    – user14111
    Aug 10, 2018 at 10:37
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    Happy to help. And it was a well-formed question with almost the entire plot in there, so you did make it easy for me! Aug 10, 2018 at 10:47
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    "Emma Watson"?? Aug 10, 2018 at 13:27

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