| United States
|| VIZ Media
|| September 6, 2016
|| ISBN 1421590700
- Steven studies strange murals found in Granite Cave alongside Ultima.
- Fearing another disaster will strike Hoenn, Steven decides to have Ruby, Sapphire, and Emerald learn Mega Evolution.
- It is revealed that Ruby has a Mega Bracelet and Latios and Latias have their respective Mega Stones.
- Steven contacts his father and sends him the strange murals found in Granite Cave.
- Ruby and Latios travel to the Sky Pillar after using Mega Evolution for the first time.
- It is revealed that Steven has the Mega Stones for the respective Hoenn starter evolutions.
- Ruby meets Zinnia and battles her.
- Ruby manages to beat Zinnia and asks for her help to stop the crisis about to hit Hoenn.
- An asteroid is expected to hit Hoenn in 10 days.
- Both Sapphire and Emerald master Mega Evolution.