Cerberus

Cerberus (pronounced /ˈsɜrbərəs/1), or Kerberos, (Greek: Κέρβερος) is a multi-headed hound (usually three-headed) which guards the gates of Hades, to prevent those who have crossed the river Styx from ever escaping. Cerberus featured in many works of ancient Greek and Roman literature and in works of both ancient and modern art and architecture, although, the depiction and background surrounding Cerberus often differed across various works by different authors of the era.

Gaia

Gaea (pronounced /ˈɡeɪ.ə/ or /ˈɡaɪ.ə/; from Ancient Greek Γαῖα “land” or “earth”; also Gæa, Gaia or Gea, from Koine and Modern Greek Γῆ) is the primal Greek goddess personifying the Earth, the Greek version of “Mother Nature” or the Earth Mother, of which the earliest reference to the term is the Mycenaean Greek ma-ka (transliterated as ma-ga), “Mother Gaia”, written in Linear B syllabic script. Gaia is a primordial deity (god) in the Ancient Greek pantheon and considered a Mother Titan or Great Titan.