The_Complete_Chronicles_of_Narnia_(volumes_1-7,_in_order_of_publication)

When Tirian realized that the two strangers could not get home (unless Aslan suddenly
whisked them away), he next wanted them to go across the Southern mountains into
Archenland where they might possibly be safe. But they didn't know their way and there
was no one to send with them. Also, as Poggin said, once the Calormenes had Narnia
they would certainly take Archenland in the next week or so: The Tisroc had always
wanted to have these Northern countries for his own. In the end Eustace and Jill begged
so hard that Tirian said they could come with him and take their chance - or, as he much
more sensibly called it, "the adventure that Aslan would send them".
The King's first idea was that they should not go back to Stable Hill - they were sick of
the very name of it by now till after dark. But the Dwarf told them that if they arrived
there by daylight they would probably find the place deserted, except perhaps for a
Calormene sentry. The Beasts were far too frightened by what the Ape (and Ginger) had
told them about this new angry Aslan - or Tashlan - to go near it except when they were
called together for these horrible midnight meetings. And Calormenes are never good
woodsmen. Poggin thought that even by daylight they could easily get round to
somewhere behind the stable without being seen. This would be much harder to do when
the night had come and the Ape might be calling the Beasts together and all the
Calormenes were on duty. And when the meeting did begin they could leave Puzzle at the
back of the stable, completely out of sight, till the moment at which they wanted to
produce him. This was obviously a good thing: for their only chance was to give the
Narnians a sudden surprise.
Everyone agreed and the whole party set off on a new line - North-West - towards the
hated Hill. The Eagle sometimes flew to and fro above them, sometimes he sat perched
on Puzzle's back. No one - not even the King himself except in some great need - would
dream of riding on a Unicorn.
This time Jill and Eustace walked together. They had been feeling very brave when they
were begging to be allowed to come with the others, but now they didn't feel brave at all.
"Pole," said Eustace in a whisper. "I may as well tell you I've got the wind up."
"Oh you're all right, Scrubb," said Jill. "You can fight. But I - I'm just shaking, if you
want to know the truth."
"Oh shaking's nothing," said Eustace. "I'm feeling I'm going to be sick."
"Don't talk about that, for goodness' sake," said Jill.
They went on in silence for a minute or two.
"Pole," said Eustace presently.
"What?" said she.