  We describe the discovery of HE 1327-2326, a dwarf or subgiant with
[Fe/H]}=-5.4. The star was found in a sample of bright metal-poor stars
selected from the Hamburg/ESO survey. Its abundance pattern is characterized by
very high C and N abundances. The detection of Sr which is overabundant by a
factor of 10 as compared to iron and the Sun, suggests that neutron-capture
elements had already been produced in the very early Galaxy. A puzzling Li
depletion is observed in this unevolved star which contradicts the value of the
primordial Li derived from WMAP and other Li studies. Possible scenarios for
the origin of the abundance pattern (Pop. II or Pop. III) are presented as well
as an outlook on future observations.
