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Good Books in Series/Trilogies
By an Amazon.com customer
The Merchant of Death (Pendragon Series #1)The Merchant of Death (Pendragon Series #1) by D.J. MacHale
Buy new: $8.99 / Used from: $0.01
The Lost City of Faar (Pendragon)The Lost City of Faar (Pendragon) by D.J. MacHale
Buy new: $12.23 / Used from: $8.02
The Never War (Pendragon)The Never War (Pendragon) by D.J. MacHale
Buy new: $12.23 / Used from: $4.00
The Reality Bug (Pendragon)The Reality Bug (Pendragon) by D.J. MacHale
Buy new: $14.44 / Used from: $9.46
Black Water (Pendragon)Black Water (Pendragon) by D.J. MacHale
Buy new: $14.52 / Used from: $5.00
The Rivers of Zadaa (Pendragon)The Rivers of Zadaa (Pendragon) by D.J. MacHale
Buy new: $8.99 / Used from: $1.89
The Pilgrims of Rayne (Pendragon)The Pilgrims of Rayne (Pendragon) by D.J. MacHale
Buy new: $12.95 / Used from: $1.98
The Quillan Games (Pendragon)The Quillan Games (Pendragon) by D.J. MacHale
Buy new: $8.99 / Used from: $3.99
Raven Rise (Pendragon)Raven Rise (Pendragon) by D.J. MacHale
Buy new: $12.23 / Used from: $6.99
The Guide to the Territories of Halla (Pendragon)The Guide to the Territories of Halla (Pendragon) by D.J. MacHale
Buy new: $8.99 / Used from: $0.15
Sabriel (adult) (The Abhorsen Trilogy)Sabriel (adult) (The Abhorsen Trilogy) by Garth Nix
Buy used from: $0.01
Lirael: Daughter of the ClayrLirael: Daughter of the Clayr by Garth Nix
Buy new: $7.99 / Used from: $0.01
Abhorsen (adult) (The Abhorsen Trilogy)Abhorsen (adult) (The Abhorsen Trilogy) by Garth Nix
Buy used from: $3.42
Mister Monday (The Keys to the Kingdom, Book 1)Mister Monday (The Keys to the Kingdom, Book 1) by Garth Nix
Buy used from: $0.01
Grim Tuesday (Keys to the Kingdom, Book 2)Grim Tuesday (Keys to the Kingdom, Book 2) by Garth Nix
Buy new: $14.03 / Used from: $9.99
Drowned Wednesday (Keys to the Kingdom, Book 3)Drowned Wednesday (Keys to the Kingdom, Book 3) by Garth Nix
Buy new: $7.99 / Used from: $0.01
Sir Thursday (Keys to the Kingdom, Book 4)Sir Thursday (Keys to the Kingdom, Book 4) by Garth Nix
Buy new: $7.99 / Used from: $1.58
Lady Friday (Keys to the Kingdom, Book 5)Lady Friday (Keys to the Kingdom, Book 5) by Garth Nix
Buy new: $12.23 / Used from: $0.90
Superior Saturday (The Keys To The Kingdom)Superior Saturday (The Keys To The Kingdom) by Garth Nix
Buy new: $12.23 / Used from: $6.89
Fall (The Seventh Tower)Fall (The Seventh Tower) by Garth Nix
Buy used from: $0.01
Castle (The Seventh Tower, Book 2)Castle (The Seventh Tower, Book 2) by Garth Nix
Buy new: $6.99 / Used from: $0.01
Aenir (The Seventh Tower, Book 3)Aenir (The Seventh Tower, Book 3) by Garth Nix
Buy new: $5.99 / Used from: $0.01
Above the Veil (The Seventh Tower, Book 4)Above the Veil (The Seventh Tower, Book 4) by Garth Nix
Buy new: $5.99 / Used from: $0.01
Into Battle (The Seventh Tower, Book 5)Into Battle (The Seventh Tower, Book 5) by Garth Nix
Buy new: $6.99 / Used from: $0.01
I don't think I actually read this one but I read 1-4 I think.
The Violet Keystone (The Seventh Tower, Book 6)The Violet Keystone (The Seventh Tower, Book 6) by Garth Nix
Buy new: $6.99 / Used from: $0.01
I don't think I actually read this one but I read 1-4 I think.
The Amulet of Samarkand (The Bartimaeus Trilogy, Book 1)The Amulet of Samarkand (The Bartimaeus Trilogy, Book 1) by Jonathan Stroud
Buy used from: $0.01
The Golem's Eye (The Bartimaeus Trilogy, Book 2)The Golem's Eye (The Bartimaeus Trilogy, Book 2) by Jonathan Stroud
Buy new: $8.99 / Used from: $0.35
Ptolemy's Gate (The Bartimaeus Trilogy, Book 3)Ptolemy's Gate (The Bartimaeus Trilogy, Book 3) by Jonathan Stroud
Buy new: $8.99 / Used from: $2.09
Eragon (Inheritance)Eragon (Inheritance) by Christopher Paolini
Buy new: $7.99 / Used from: $1.84
Eldest (Inheritance, Book 2)Eldest (Inheritance, Book 2) by Christopher Paolini
Buy new: $9.35 / Used from: $0.01
Brisingr (Inheritance, Book 3)Brisingr (Inheritance, Book 3) by Christopher Paolini
Buy new: $18.15 / Used from: $3.90
Twilight (The Twilight Saga, Book 1)Twilight (The Twilight Saga, Book 1) by Stephenie Meyer
Buy new: $5.50 / Used from: $2.20
I haven't read the other books yet, but I am sure they are as good if not better than this one.