0:00 A tiny mouse can squeeze through a hole the size of a pen.0:04 It’s a good thing to remember when you hear a strange new sound.0:10 It’s a little like last week, when Leo had to be brave about what was behind his midnight curtain, but this sound wasn't a rustle or a scrape.0:21 It was a giggle.0:22 A tiny, bubbly giggle, coming from the closet.0:26 Mia was tucked into bed, warm and cozy.0:29 The only light was from the moon, painting a silver square on her rug.0:35 Everything was quiet.0:37 Everything was still.0:39 Until… .0:39 There it was again.0:41 It was soft, like a soap bubble popping.0:44 It came from behind the closet door, which was open just a crack.0:50 Now, a giggle in a dark closet could be a little bit spooky.0:54 Ooooh, yes.0:55 Your heart might start to go pitter-patter-pitter-patter.1:00 Mia’s certainly did.1:02 She pulled the blankets right up to her nose.1:05 Blankets are, as we all know, an excellent defense against mysterious nighttime things.1:13 She listened, her ears on HIGH alert.1:16 Was it a ghost who had forgotten how to say "boo" and started telling jokes instead?1:22 Was it a monster with tickly fingers?1:25 The giggle came one more time.1:28 Tee-hee-hee.1:29 It didn't sound mean.1:31 It didn't sound scary.1:32 It sounded… happy.1:34 And maybe a little bit lonely.1:36 Mia took a deep breath.1:38 She remembered that being brave doesn’t mean you’re not scared.1:43 It just means you do the brave thing ANYWAY.1:47 And she was feeling very brave tonight.1:50 Slowly, quietly, she pushed back the covers.1:54 One foot on the floor.1:56 Then the other.1:57 The floorboards were cool beneath her toes.2:00 She crept across the room, one step at a time, like a super-secret spy on a very important mission.2:09 The mission?2:10 To solve the Case of the Closet Giggle.2:13 She reached the closet door.2:15 The little sliver of darkness looked very, VERY dark.2:19 She took one more deep breath, puffed out her chest like a superhero in pajamas… and pushed the door.2:28 It swung open with a soft creak.2:30 Inside, it was a jungle of hanging clothes and shoes piled on the floor.2:36 It smelled like cedar and clean laundry.2:40 She peered into the shadows.2:42 Nothing.2:43 And then… .2:43 It was right by her feet!2:45 Mia looked down.2:47 And there, in a little nest of fallen socks and sparkly dust, sat the source of the mystery.2:54 It was a little, round, fluffy ball of lint and fluff, no bigger than her thumb.3:01 It had two big, sparkling eyes and a tiny, wiggling nose.3:06 As she watched, it trembled, puffed itself up, and let out the tiniest giggle she had EVER heard.3:14 It wasn't a monster.3:15 It was a Dust Bunny.3:17 But a special one.3:18 A Giggle Bunny.3:20 It looked up at her, and she understood.3:23 It wasn't trying to be scary.3:25 It was just happy to have company.3:28 Gently, Mia scooped the Giggle Bunny into her hands.3:32 It was surprisingly warm, and it vibrated with soft, happy hums.3:38 She carried it back to her bed and placed it on her nightstand, right next to her lamp.3:45 The Giggle Bunny wiggled its nose, gave one last, sleepy little giggle, and curled into a perfect, fluffy ball.3:54 Mia climbed back under her covers, feeling warm and safe.3:58 The room was quiet again, but this time, it was a friendly, cozy quiet.4:04 She closed her eyes, knowing that even the smallest, silliest sounds can sometimes lead to the sweetest friends.