Powers That Be
Anne McCaffrey & Elizabeth Ann Scarborough
Power Trlogy (1)
Power Play
Power Trlogy (3)
Power Lines
Power Trlogy (2)
Changelings
Twins of Pataybee Trilogy (2)
Maelstrom
Twins of Pataybee Trilogy (3)
Deluge
Twins of Pataybee Trilogy (1)