"If you look into River Mumma's eyes, something terrible going happen to you!" Too late, Delroy remembers his mother's warning. Is drowning his fate or is something worse in store? Becoming a marog is only the beginning. The king of these unusual frogs has chosen Delroy to succeed him, but first he must retrieve the king's magical stone from a venomous snake. Slogging through underground caves and tunnels, faced with insurmountable obstacles, Delroy is tempted to give up and wonders whether he will ever return to his former life.