  Near the center of the Puppis A SNR a series of nested optically emitting
rings of high velocity ejecta (known as `the Swirl') were identified several
decades ago by Winkler et al. (1989). To date no follow-up observations of
these rings have been published, and their physical origin has remained a
mystery. We present results of integral field spectroscopy of the Swirl using
the Wide Field Integral Spectrograph (\wifes) on the 2.3\,m telescope at Siding
Spring Observatory in Australia. The outermost ring exhibits a nitrogen-rich
spectrum blueshifted to 1350 km/s, with smaller blueshifted rings within the
first exhibiting mostly oxygen-rich spectra moving at 1000 km/s and 750 km/s.
The structures are connected by material of intermediate velocity and variable
composition, including sulfur-rich material. The Swirl is turbulent and shock
excited, and contains as much as 0.5 M$_{\odot}$ of metal-rich material. The
chemical composition and exclusively blueshifted radial velocities of the Swirl
are consistent with progressively deeper nucleosynthetic layers in a massive
progenitor star. We suggest the possibility that the Swirl marks a `funnel'
carved into the supernova ejecta by a close, massive binary companion at the
moment of explosion.
