The Invisible Thief

E1

The Evil Knight

E2

An Empty Cage At Wimbledon Stadium

E3

The Treasure Of The Catacombs

E4

The Secret Of The Templars

E5

Project Hippocampus

E6

The Octopus Trap

E7

The Serval Of The Thames

E8

The Invincible Adversary

E9

The Diamond Gnome

E10

The Attack Of The Giant Ant

E11

The Return Of Warragul

E12

The Vengeance Of The Werewolf

E13

The Forgotten Threat

E14

The Secret Horde

E15

The Lexington Vampire

E16

The Haunted Aviary

E17

The Mystery Of Lexington Alley

E18

The Elusive Robin Of The Animals

E19

The Riddle Maker

E20

The Nibbler

E21

The Master Of Lightning

E22

The Gorgon Of Regent's Park

E23

The Phantom Of Linford Street

E24

The Spy Of Buckingham

E25

The Cause

E26