You then run left, through a narrow patch of trees. It would have been
too narrow to get through on Ambrosia.
You hear the witch coming close. You run behind a large oak tree and
climb up into it's high branches, where the leaves shield you from
sight.
Once you have settled on one of the branches, you look down. The witch
is running past the oak tree, thinking that you had kept running after
you ran behind it.
You breathe a sigh of relief. You're safe... for
now.
...jump off of Ambrosia's back and yell for (him/her) to run away and
that you'll find (him/her) later.