Character · Book 2, Carl's Doomsday Scenario
Mistress Tiatha
'Our tutorial guide lady, Mistress Tiatha': the Meadow Lark party's guide, whom Brandon calls their guildmaster, and who told them where the stairwells are.
Segment appearances
Arc
The Meadow Lark's game guide, whose location fixes theirs (ch. 3); Brandon's report on their slow selection (ch. 8).