The ISBN of Blood of the Fold is 0-312-89052-4.
The ISBN of The Fold - novel - is 9780399242762.
The ISBN of Ocean of Blood is 0007315880.
The ISBN of The Blood Spilt is 0385339828.
The ISBN of Blood of Dreams is 9780670071388.
The ISBN of Blood Sisters is 1843432757.
The ISBN of Blood Games is 0747238219.
The ISBN of Blood of the Prophets is 0806134267.
The ISBN of "The Bird That Drinks Blood" is 978-1595940763.
The ISBN of Lion's Blood is 978-0446526685.
The ISBN of Blood's a Rover is 978-0679403937.
The ISBN of Thieves of Blood is 978-0786940059.
The ISBN of Blood Beast is 978-0007231324.