• Russia: What is the Golden Horde?Edward Packard
• Russian GoldSteve Barlow
• SabotageJay Leibold
• Sabotage in the Sundered SkyDanny McAleese, David Kristoph
• Sabotage!Shane Breaux
• Sail with PiratesJim Gasperini
• SamuraiSteve Barlow, Steve Skidmore
• Sand CastleR.A. Montgomery
• Sands of BloodSteve Barlow, Steve Skidmore
• Save the Empire!Steve Barlow
• Save the SeasonLisa M. Bolt Simons
• Save the Three PigsKevin Scally
• Scarlet SorcererJoe Dever
• Scary Birthday to You!R.L. Stine
• Scene of the CrimeDoug Wilhelm
• Sceptre of PowerMorris Simon
• Scorpion SwampSteve Jackson
• Scotland Yard DetectiveSeymour Reit
• Scoundrel's LuckTroy Denning
• Scream of the Evil GenieR.L. Stine
• Search for DinosaursDavid Bischoff
• Search for Smugglers!Mary Danby
• Search for the DoctorDavid Martin
• Search for the Mountain GorillasJim Wallace
• Search for the NileRobert W. Walker
• Search for the PegasusRoger E. Moore
• Search for Treasure!Mary Danby
• Search the Amazon!Doug Wilhelm
• Seas of BloodAndrew Chapman
• Seaside MysteryAnn Hodgman
• Second SkinRichard Dungworth
• Secret Agent A.C.E.Stephen Thraves
• Secret Agent GrandmaR.L. Stine
• Secret CargoCarolyn Keene, Franklin W. Dixon
• Secret of the DjinnJean Rabe
• Secret of the DolphinsEdward Packard
• Secret of the KnightsJim Gasperini
• Secret of the MarshPhilip Herriot
• Secret of the NinjaJay Leibold
• Secret of the Old MuseumRoy Wandelmaier
• Secret of the PyramidsRichard Brightfield
• Secret of the Royal TreasureCarol Gaskin
• Secret of the SphinxRhondi Vilott
• Secret of the Sun GodAndrea Packard
• Secret of White Monks AbbeyPhilip Herriot
• Secret ProjectKevin Berry
• Secret SorceressLinda Lowery
• Secrets of Glass MountainBlair Polly, D.M. Potter
• Secrets of SalamonisJonathan Green, Steve Jackson
• Secrets of the Lost IslandLynn Beach
• Secrets of the Singing CaveBlair Polly, D.M. Potter
• Seed Bank HeistJ.E. Bright
• Select Your SuperpowerDavid Blaze
• Serena's SecretBryan Strong, Christine DeVault
• Serpentor and the Mummy WarriorR.L. Stine
• Seven No-TrumpNeil Randall
• Seven-Boy VacationJan Gelman
• Sex & ShoppingDavid Thomas
• Sextrap DungeonKurt Knox
• Shadow ChaserSimon Tudhope