Bold Toa is a Kai Lord at the rank of Guardian, based on the Isle of Lorn.
In MS 5103, during the events of The Dusk of Eternal Night, after Agarash returned to Magnamund, he summoned the Vaag to attack the Isle of Lorn. Grey Star teleported himself and Grand Master there to escape Agarash's clutches. Lightning Guanza and Bold Toa, who were on guard duty, spotted them, and Grand Master ordered Lightning Guanza to run ahead and sound the alarm, while Bold Toa guided Grey Star and Grand Master through the jungle back to the Kai Monastery.[1]