Also gegen Ende des Spiels hat mir auch ganz schön der Kopf geraucht.
Eine Story Wendung jagt die Nächste.
In diesem Zusammenhang kann ich euch die Lösung von "Toasty Frog" bei Game Faqs nur weiterempfehlen. Dort wird neben dem eigentlichen Spiel selbst, auch die Story und Flashback Points zu Chrono Trigger, sowie einige Mysterien ausführlich beschrieben. So dass nicht mehr allzu viele Fragen offen bleiben dürften...
Unter anderem geht er auch auf das Thema Guile/Magus ein, was ich mal unten angehängt habe.

c. IS GUILE ACTUALLY MAGUS?
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Probably not. However, according to Andrew Vestal (andrewv@thegia.com),
in Radical Dreamers (the text-adventure from which Chrono Cross derives some
of its story) the Guile character was named "Gil." He was a masked mage with
long white hair and at the end of the game, you discovered he was actually
Mahou (Magus) looking for Sara (Schala). Obviously, this was changed for the
revised game for a number of reasons; but Guile does indeed resemble Magus - a
powerful black mage with long white hair who floats as he moves. Their
personalities seem a bit different, though, with Guile seeming much more
gregarious than Magus. Additionally, their ages don't seem to match up - Guile
is 27, and Magus would probably be older by this point. Good guesswork, though.
As a side note, Guile was called "Alf" in the Japanese game - similar to Janus'
(Jacky's) cat Alfador. I think it's a mind game by Square. (A NOTE: Radical
Dreamer's Gil character is officially named "Magil" in English, based on the
text in Chronopolis from the alternate-reality memoirs. Further means by which
to debunk the myth)

Quelle: CHRONO CROSS GUIDE & FAQ
By ToastyFrog
(J. Parish - tfrog@camalott.com)