Thrillers (have actually read all of these - yay!)
DOWN RIVER by John Hart (German title THE DARK RIVER)
IN THE WOODS by Tana French (German title THE GREEN FOUND ON GRAVES)
THE LIKENESS by Tana French (German title DEATH-LIKE)
ONE FOOT IN THE GRAVE by Jeaniene Frost (German title KISS OF THE NIGHT)
DEAD UNTIL DARK By Charlaine Harris (German title TEMPORARILY DEAD)
LOST IN A GOOD BOOK by Jasper Fforde (German title IN ANOTHER BOOK)
EVERNIGHT by Claudia Gray (same title) Note: Marketed to adults in Germany.
POPE JOAN by Donna Woolfolk Cross (German title THE FEMALE POPE)
THE BOOK THIEF by Marcus Zusak (same title) Note: This is the cover marketed for adults.
THE TIME TRAVELERS WIFE by Audrey Niffenegger (same title)