Gary noticed one of his inventions was missing, so he called agents to look for signs of it in Ski Village. He later discovered that Klutzy had found a way into the Gadget Room (suspecting Rookie accidentally left it open), and used a spy phone to teleport the invention back to Herbert's Lair. However the invention exploded on arrival, causing the lair to fill with water, drifting Herbert into the ocean.
The invention was made as an alternative to the Underwater Expedition, as that is how Herbert awakens from hibernation in Club Penguin.
Field Ops #3 mentions this invention.
In Club Penguin Times issue #19, Gary mentions this invention was stolen from him a few weeks ago under mysterious circumstances.