Thumbelina and Barnaby discover that ancient tunnels aren't all they're cracked up to be. Meanwhile, Yolo and Piper make an important discovery, and Scarborough and Hellastella Jones find themselves on absolutely the wrong kind of adventure.

Cast: Garrick Sigl - Brattlesworth Hari Rai Khalsa - Control Panel Isaac Christie - Yolo Jamie Jung - Scarborough Mara Anderson - Hellastella Jones Melissa Chambers - Thumbelina Quinn Scicluna - Unit Number 57166 and the Birdman Stephen Zamora - Barnaby Zoey Reese - Piper

Production: Hari Rai Khalsa - Writer Sahib Simran Khalsa - Sound Design and Engineering Sound effects by: Sahib Simran Khalsa, with additional sound effects from the following users at FreeSound.org: 140084, abcbicycle, bareform, bone666138, bspiller5, cell31-sound-production, coral-island-studios, darius-kedros, dheming, drminky, elliotip, enragedturkey, escortmarius, esseffe1, everheat, ftpalad, grantorino551, inspectors, klankbeeld, lucaslara, megamart, murcielago123, nebulousflynn, plingativatos, pogotron, psychentist, qubodup, reznik-krovicka, rpew1, ruovniekerk, rynostols, sheepfilms, squishy555, st303, sutty49, webbfilmsuk, youandbiscuitme FreeSound effects are distributed under a Creative Commons license.