Marshall's Sad Day

"Marshall's Sad Day" is the fourteenth episode of Marshall's Clues  from the second season. =Cast=
 * Blue - Marshall (PAW Patrol)
 * Steve - Dora (Dora the Explorer)
 * Sidetable Drawer - Binyah Binyah Polliwog (Gullah Gullah Island)
 * Mailbox - Miss Spider (Miss Spider's Sunny Patch Friends)
 * Tickety Tock (not very much) - Wubbzy (Wow! Wow! Wubbzy!)
 * Turquoise - Boots (Dora the Explorer)
 * Freddy - Molly (Bubble Guppies)
 * Fifi - Gil (Bubble Guppies)
 * Orange Kitten - Zuma (PAW Patrol)
 * Green Puppy - Everest (PAW Patrol)
 * Purple Kangaroo - Bubble Puppy (Bubble Guppies)

Summary
Dora and Marshall invite the viewers inside to learn about emotions and feelings. Marshall is sad about something.

Clues:

 * 1) A Tower of Blocks
 * 2) Everest
 * 3) A Falling Down Tower of Blocks

Answer to Marshall's Clues:

 * Everest knocked down Marshall's block tower