Betty was hoping of mastering her ability as fast as possible and enter into the Iron Tower and so she had practiced her blood ability and so she had imagined it and she had hardened it to the point to where she can shot out blood from her body and she must control the amount of blood that comes out of her body so she can't get kill due to blood loss.
After a few good times doing the same thing for the past few hours and it is morning now but the sun does not come out all of the ways and so they had to go out while it seems to be dim outside.
They were trying to test the skills that they both learn so far and while Betty was working on her ability. Ember was working on hers and so she had to use it as such to the point where she had to use a new ability that is good for combat and so she had attained the fire and archer ability.