Garrah told Adam a lot about the Glass Bridge. Sure, he didn't know everything, and most of the details were unknown to him since things were constantly changing, and he had last used the bridge many years ago.
However, he told Adam that crossing the Glass Bridge might not be so easy, and now Toa showed him his first obstacle.
"I'm afraid you'll have to pay, human. Well, if you want to continue, that is."
Toa smiled as she turned around once, looking around dreamily.
"I'm sure this is nothing new for you, as a human, right?"
"Pay?" Silvana's indignant voice rang out. "Are you monsters or merchants? What does that even mean? You don't have currency!"
Toa giggled. "Sure, we don't have money and coins like you humans do. At least in most lands. However, we do have currency—energy."
Silvana was about to say something, but Adam stopped her with a gesture.