March 17, 2020 Mythic Artifacts Post a Comment Swords from Celtic mythology: Mac an Luin – the Son of the Waves – sword of Fionn mac Cumhaill Make an Offering to Mythic Archswords to build new virtual temples on SwordTemple Mac an Luin, the Son of the Waves, sword of Fionn mac Cumhaill. This artifact is a part of SwordTemple Library