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| What Would You Do for a Whismur?/VS Whismur
What Would You Do for a Whismur?/VS Whismur or Rumbling Rusturf Tunnel (Japanese: VS ゴニョニョ VS Gonyonyo or 激震 カナシダトンネル Rumbling Kanashida Tunnel) is the 219th round of the Pokémon Adventures manga.
Ruby sends Mumu under the rubble while Ty questions his actions. Ruby states that even as a Marshtomp, Mumu kept the radar it possessed as a Mudkip. Mumu uses his radar and dives down into a puddle of mud, which splashes onto Gabby, Ty, and Wanda's faces. Mumu eventually finds a huge boulder, which he breaks with Rock Smash.
Mumu emerges with an unconscious Riley in his hands, much to Wanda's joy. After Ruby gives Mumu a Pokéblock as a reward, Riley regains consciousness. Although Wanda believed that Riley had construction halted because of the danger, Riley reveals that they had to stop the construction because they were disturbing the wild Whismur inside. Finding the Pokémon cute, Ruby is moved to tears at the thought of them wanting to protect the Whismur.
Although they had taken precautions, the earthquake that caused the cave-in was unexpected. Riley believes that the earthquakes are a sign that something bad will happen to Hoenn soon, cluing Ruby into noticing that the Absol had disappeared. Suddenly, the Whismur begin screaming, which means that something bad is about the happen.
The Whismur prove to be correct, as an earthquake suddenly starts and causes the cave to start caving in again. The group hear voices that are surprised to see people inside the cave, as they only intended to start a natural disaster. The voices reveal themselves to be members of Team Magma, Courtney included. The Grunts attack, forcing Tyler and the others to defend themselves, while Courtney goes to search for the Red Orb.
When Tyler begs Ruby to help him, Ruby refuses, which causes Courtney to notice him. Using her lighter, Courtney memorizes Ruby's face and decides to change her plans. While riding on her Swellow, Courtney charges at Ruby.