Assuming you're talking about during the war - the London tube system provided an ideal shelter from the bombings - as they were deep underground.
Eighteen, but they like to hide on the streets of London and are hard to spot.
In the underground catacombs.
in the back or underground
To hide from danger.
They hide their treasure underground but they all bury there treasure in different places.
Not if your their going on the underground railroad.
in an underground railroad
yes
To hide from potential predators.
Oh that's easy, in Sonic Rush Adventure, all you gotta do is first, find the "Underground Hide-Out" and then... That's it.
in underground tunnels But i am not sure if this is right tho
avoid its path or hide somewhere underground