Larklight trilogy was created in 2006.
Larklight was created in 2006-10.
The ISBN of Larklight is 0747582408.
Darklands Trilogy was created in 2005.
The Prodigal Trilogy was created in 2008.
Viking Trilogy was created in 1957.
Auton trilogy was created in 1998.
Underworld Trilogy was created in 2010.
The Wimbledon Trilogy was created in 1993.
The Firebringer Trilogy was created in 1985.
The Magician Trilogy was created in 1986.
The Bounty Trilogy was created in 1936.
The Jade Trilogy was created in 1988.