Tom Riddle's Diary is the fourth level of LEGO Harry Potter Years 1-4 Chamber Of Secrets.
It sees Harry and Ron enter Moaning Myrtle's Bathroom to find Myrtle enraged.
After defeating her Ron is rendered unconsious by a Diary with the Salazar Slytherin Symbol which upon opening sucks Harry into a past Hogwarts and into an alignment with Tom Riddle.
Riddle's Diary Corridor
|Playable Characters||Enemies||Bosses||Crests||Gold Brick||True Wizard|
| Harry Potter
Ron Weasley Tom Riddle
|None||Moaning Myrtle|| Gryffindor
Ravenclaw Slytherin Hufflepuff
| True Wizard
Student In Peril Hogwarts Crest