Immune resistance to biological colonisation

I'm thinking of a plot where the Earth is taken over and literally eaten by a race of giant alien beings who use mass-energy conversions to power themselves (These guys are as big as the sun, body structure of StarCraft Leviathans, sentient)

Without a home, humanity takes it upon itself to do the impossible: colonise the bodies of the beasts themselves.

Now, the aliens have discovered machine augmentation. They lack limbs, but instead use long tentacles as graspers. They suck material from heavenly bodies through a toothless mouth, and their stomach functions as a mass-energy reactor, with the aid of a particle-accelerator type environment, where they collide the particles and utilise the Hawking radiation to power themselves.

The plan of the protagonists is to enter using special drop pods along with the material, latch onto the oesophagus wall, burrow into the muscle and deploy a colony there. The damage will be smalller than a pinprick for the giants, and they won't even notice. However, the immune system will.

So, my question, what kind of punches would the immune system, biological or semi-mechanical, have to pack to present an actual threat to the human drop pods or the people themselves?

Extra info:

• The aliens do generate their own gravitational field.
• Humanity's technological level is sufficient to allow interplanetary travel.
• The immune system cells of the giants are likely to be bigger than the people or their drop pods.
• The humans are carrying a military force, including heavy artillery, armored vehicles, and troop transports.

posted over 6 years ago

Budhaditya Ghosh‭

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