[quote=@IncredibleBee]
<Snipped quote by Raineh Daze>

Casuality. A Behelit always returns to its user, by manipulating probability. Griffith's got lost in a sewer for a year, then he found it in a riverbed. If Guts loses his, he'll get it back some way or another.

This is covered in the manga.
[/quote]

A) Causality
B) Knew that, read it
C) The point's more 'how it's going to get from Hanako to Guts'. Because there's no reason either of them would interact. O_o