Siboi Cross was the second Force elemental, and fifth elemental overall.
Siboi was Seygahd Crow's only child, born under unknown circumstances. He was raised for the early years of his life by his mother until she died of an illness not yet recorded. After her death, the monks raised him collectively until he was of age to lead them. It was Siboi who chose to name the order after his mother, and he also formed their set of values much more concretely than his mother had. Although his mother had officially founded the monks, Siboi was the true mastermind of bringing them together, and establishing a true sense of community and purpose among them.