" The Dark Prophecy
The words that memory wrought are set to fire,
Ere new moon rises o'er the Devils Mount.
The changeling lord shall face a dire,
Till bodies fill the Tiber beyond count.

Yet southward the sun now trace its course,
Through mazes dark to lands of scorching death
To find the master of the swift white horse
And wrest from him the crossword speaker's breath.

To westward palace must the Lester go;
Demeter's daughter finds her ancient roots.
The cloven guide alone the way does know,
To walk the path in thine own enemy's boots.

We three are known and Tiber reached alive,
'Tis only then Apollo starts to jive. "

― Rick Riordan , The Hidden Oracle / The Dark Prophecy (The Trials of Apollo #1-2)