- T wie Tessa (Band 1) - Plötzlich Geheimagentin!
- Tabby the Tattle Tot
- Tagli ja Telle. Tehtävä kauppakeskuksessa
- Tagli ja Telle. Tehtävä kuvauspaikalla
- Tagli ja Telle. Tehtävä sirkussaarella
- Tajemnica Fabritiusa
- Talent Show Tricks
- Tales of Terror
- Tangled Secrets
- Tangled Up in Luck
- The Tattooed Potato and Other Clues
- Taupes
- Taxi to Intrigue
- The Tea Party
- Teacher Bu, the Chief of the Goblins (English)
- The Teen Model Mystery
- Teestunde mit Todesfall
- The Temple of the Crystal Timekeeper
- Tenía que ser Ivy Pocket (Ivy Pocket 1)
- The Test Case
- Texas Trail to Calamity
- The Thanksgiving Surprise
- Thanksgiving Thief
- That Time I Got Kidnapped
- Theodore Boone: Kid Lawyer
- Theodore Boone: The Abduction
- Theodore Boone: The Accomplice
- Theodore Boone: The Accused
- Theodore Boone: The Activist
- Theodore Boone: The Fugitive
- Theodore Boone: The Scandal
- Third-Grade Reporter
- Three Days
- Thrill on the Hill
- Thrill Ride
- Ticket Trouble
- Tifanfaya
- The Tiger's Eye
- Tifanfaya
- The Tiger's Eye
- Timanttien arvoitus. Lasse-Maijan etsivätoimisto
- The Time Camera
- The Time Hackers
- The Time of the Ghost
- Time Thief
- The Time Warp Wonder
- TimeRiders: City of Shadows (Book 6)
- TimeRiders: The Pirate Kings (Book 7)
- Tina och de mystiska inbrotten
- Tito the Bonecrusher
- Todo por un maldito balón de fútbol
- Tom Sawyer als Detektiv
- Tom Sawyer, Detective
- Tom Sawyers Abenteuer und Streiche, Tom Sawyer als Detektiv & Huckleberry Finns Fahrten
- Too Many Secrets
- Top Crime Busters