A Breach in Bonta

Rocks... (15)

 * Speak to Amayiro.
 * Go speak to Shere Hacanon at the entry (-29, -49)
 * Bring him back at least 4 Rock Blocks (a quest item dropped by Plain Cracklers)
 * Note: You can gather more than 4, but Shere Hacanon will take them all.