  The kinematic induction equation of MHD is solved numerically in the case of
the normal ``111'' ABC flow using a general staggered mesh method. Careful 3-D
visualizations of the topology of the magnetic field reveal that previous
conclusions about the modes of operation of this type of kinematic dynamo must
be revised. The two known windows of dynamo action at low and high magnetic
Reynolds number, correspond to two distinct modes, both relying crucially on
the replenishing of the magnetic field near a discontinuity at the beta-type
stagnation points in the flow. One of these modes display double magnetic
structures that were previously found only to obscure the physics of the
dynamo: They turn out, however, to play an important part in the process of
amplifying the magnetic field. Invariant properties of the mode in the second
magnetic Reynolds number window support the case for the normal ABC flow as a
fast dynamo.
