Two of a kind

#01 It's a Twin Thing (01/99)
#02 How to Flunk Your First Date (01/99)
#03 The Sleepover Secret (03/99)
#04 One Twin Too Many (06/99)
#05 To Snoop or not to Snoop? (07/99)
#06 My Sister the Supermodel (08/99)
#07 Two's a Crowd (10/99)
#08 Let's Party! (12/99)
#09 Calling All Boys (02/00)
#10 Winner Take All (04/00)
#11 PS Wish You Were Here (06/00)
#12 The Cool Club (08/00)
#13 War of the Wardrobes (10/00)
#14 Bye-Bye Boyfriend (12/00)
#15 It's Snow Problem (01/01)
#16 Likes me, Likes me Not (04/01)
#17 Shore Thing (06/01)
#18 Two for the Road (07/01)
#19 Surprise, Surprise (10/01)
#20 Sealed with a Kiss (12/01)
#21 Now You See Him, Now You Don't (02/02)
#22 April Fools' Rules (04/02)
#23 Island Girls (06/02)
#24 Surf, Sand, and Secrets (08/02)
#25 Closer Than Ever (10/02)
#26 The Perfect Gift (12/02)

The new adventures of MKA

#01 202 Clues
#02 Ballet Bandit
#03 Blue-Ribbon Horse
#04 Haunted Camp( 06/98)
#05 Wild Wolf River (08/98)
#06 Rock & Roll Mystery
#07 Missing Mummy (12/98)
#08 Surprise Call
#09 Disappearing Princess
#10 Great Elephant Escape (04/99)
#11 Summer Camp Caper (07/99)
#12 Surfing Secret (08/99)
#13 Green Ghost (09/99)
#14 Big Scare Mountain Mystery (11/99)
#15 Slam Dunk Mystery (01/00)
#16 Rock Star's Secret (03/00)
#17 Cheerleading Camp Mystery (06/00)
#18 Flying Phantom (07/00)
#19 Creepy Castle (09/00)
#20 Golden Slipper (11/00)
#21 Flapper Napper (01/01)
#22 High Seas Secret (03/01)
#23 Logical I Ranch (06/01)
#24 Dog Camp Mystery (07/01)
#25 Screaming Scarecrow (09/01)
#26 Jingle Bell Jinx (10/01)
#27 Game Show Mystery (01/02)
#28 Mall Mystery (03/02)
#29 Weird Science Mystery (06/02)
#30 Camp Crooked Lake (07/02)
#31 Giggling Ghost (09/02)
#32 Candy Cane Clue (11/02)
#33 The Hollywood Who-Done-It (12/02)