Silas Charnon was the husband of Isabel Charnon, the grandfather of Karen Hayes and Emily and Navin Hayes' great-grandfather. He created Miskit, Cogsley, Morrie, and all of the other robots that live in the house. Just before Silas died, he left all of his thoughts and memories in Miskit's databanks to assist him in teaching Emily and leading her down the right path. He left the stone's power to Emily.
History
Silas Charnon is first shown in The Stonekeeper, where Emily has her first and last meeting with him. He soon after dies, and the stone's power is passed to Emily after her decision to become a Stonekeeper and end the war.
Silas onwards is only mentioned and appears in flashbacks.
The Stonekeeper's Curse
TBA
The Cloud Searchers
TBA
The Last Council
A slightly younger Silas with his inventions
In the fourth volume, Vigo spoke about himself being once part of the Guardian Council with Silas and explaining, upon Miskit mentioning about the latter's exile, the actual reason behind said exile is because of the desire to destroy the Mother Stone; Silas believed that the stone could fall into the wrong hands if it's not going to be used, let alone leaving it as a last resort.