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I read a book maybe 20 years ago about a colony ship that arrived at a new planet and quickly went down to live on the surface. Some kind of acid rain came, killing several colonists. There were some creatures, maybe small Chinese dragon-like things, that could neutralize the rain and protect them. It was part of a series I think.

It's not:

  • The Legacy of Heorot (Jerry Pournelle/Larry Niven/Steven Barnes, 1987)
  • The Faces of Ceti (Mary Caraker, 1991)
  • Founding Father (Isaac Asimov, 1965)
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    These sounds very similar to the Dragonriders of Pern series by Anne McCaffrey - namely Dragonsdawn, which tells of the first colonisation of Pern. en.wikipedia.org/wiki/Dragonsdawn
    – Showsni
    Oct 27 '20 at 15:04
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I think you read one of the dragon riders of Pern books by Anne McCaffrey.

From the description you give, I expect you read Dragonsdawn as it tells the story of the landing on Pern, the discovery of the fire lizards, and the first pass of thread.

"Thread" is probably the thing you called "acid."

The effects of threadscore is similar to an acid burn.

Thread also destroys large swathes of unprotected land.

At first, the colonists fight thread using flamethrowers mounted on the various flying machines they had brought with them. The periodic thread fall all over the colonised areas takes its toll on machines that should have been usable for decades - the machines start failing and the colonists look for something to replace them.

The fire lizards native to the planet instinctively fight thread - they burn it as it falls with their fiery breath.

The fire lizards are too small to protect all the settled lands, and too flighty to rely on anyway.

The colonists genetically modify some fire lizards to grow larger and be more intelligent.

The modified lizards are large enough to carry a human.

The modified lizards are called "dragons."

The combination of a fire breathing dragon and a dragonrider makes an effective replacement for a worn out flying machine.

Organized into large groups, the dragon riders can effectively defend settled areas against thread.


Entertaining stories, and there's a lot of them.

Fire lizards (and dragons) have abilities that weren't obvious, and that turn out to be quite useful - and important.

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  • Thanks, that's the one!
    – user
    Oct 27 '20 at 16:36
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    While reading the original post, it wasn't until I got to the part about indigenous dragons flying around that I suddenly realized the planet might be Pern! Until then, "acid raid" had me thinking along very different lines as I tried to think of similar stories I'd read . . .
    – Lorendiac
    Oct 27 '20 at 22:08

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