After the ground loosened up, I lifted all of it off the ground and kept it hidden in my storage for a bit. I placed a huge timer that says "one hour, zero minutes, zero seconds". I also told them that it is the limit of the effectivity of the spell I did since it is a combination spell that is incredibly draining. It is not that I do not have enough mana but it is just that it is better to use it to make milk, you see.
I gave a heads up to all the people of the village that we can start the excavation and if they find something that was too big to bring out, I can assist them in lifting it and putting it aside. Somebody even asked me if it is possible to just lift the whole house or building. I told him I could but the time remaining out of the one hour will be greatly reduce because of the mana consumption. They decided against it as a collective and opted to take as much as they can out of the still usable materials instead.