Silens Umbra originally started out as a unnamed espionage group created by Escorien Twilight to gain information about Ryu Phoenix's Dark Alliance and expose it to the Keepers of Mana. The group eventually expanded with the addition of a few new members and was named Silens Umbra, Latin for Silent Shadows. Silens Umbra is now a group who tries to stop evil plots from coming to fruition, although it hasn't had a lot of success in this area as it tends to act more as backup to the stronger protagonist characters which are involved in whatever the current plot.