  The Gemini High-resolution Optical SpecTrograph (GHOST) is the newest high
resolution spectrograph to be developed for a large aperture telescope,
recently deployed and commissioned at the Gemini-South telescope. In this
paper, we present the first science results from the GHOST spectrograph taking
during its commissioning runs. We have observed the bright metal-poor benchmark
star HD 122563, along with two stars in the ultra faint dwarf galaxy, Ret II,
one of which was previously identified as a candidate member, but did not have
a previous detailed chemical abundance analysis. This star (GDR3 0928) is found
to be a bona fide member of Ret II, and from a spectral synthesis analysis, it
is also revealed to be a CEMP-r star, with significant enhancements in the
several light elements (C, N, O, Na, Mg, and Si), in addition to featuring an
r-process enhancement like many other Ret II stars. The light-element
enhancements in this star resemble the abundance patterns seen in the CEMP-no
stars of other ultra faint dwarf galaxies, and are thought to have been
produced by an independent source from the r-process. These unusual abundance
patterns are thought to be produced by faint supernovae, which may be produced
by some of the earliest generations of stars.
