Detective Pinkie Pie by C-H-Loboguerrero-C

You can find both synopses after the break. Have fun.

Air date: April 7, 2012, 17:00 UTC (1 p.m. EST)

Synopses:

• “A cake Pinkie Pie is guarding for a contest is ruined on the way to Canterlot and an investigation begins.” (Zap2it)
• “After a cake she is guarding for a contest is destroyed on the way to Canterlot, Pinkie Pie starts an investigation into who the culprit is, which turns into one of the silliest criminal investigations in the history of Equestria.” (FYI Television via U-verse)