Start from the beginning.
1 - Power Lad approaches Knight Terror, holding Heroes are Zeroes out for Knight Terror to see. Knight Terror is thrilled at what he's hearing and seeing.
POWER LAD: Say, you didn't happen to receive the wrong book in the mail recently, did you?
KNIGHT TERROR: !
2 - The two exchange books. Power Lad flips through the pages of Zero to Hero. Knight Terror looks at the cover of Heroes are Zeroes happily.
KNIGHT TERROR: Oh, man! I didn't know what to do with myself.
POWER LAD: I know! So unnatural.
3 - The two start walking off. Knight Terror has his arm around Power Lad's shoulder like an old friend. They are being pretty chummy.
KNIGHT TERROR: Man, it's really lucky we ran into each other.
POWER LAD (1): For reals.
POWER LAD (2): Any later and we might have done something we'd regret.
4 - Back on the death trap holding ROBerta and Minnow. The water is higher and lower in their respective glass chambers. They look worriedly towards the direction that Power Lad and Knight Terror have walked off.
MINNOW: Little help?