The knights in the Agile Kingdom faced challenges sizing epics due to their variable size, complexity, and uncertainty. They developed two recipes - the Blue Recipe which involved planning poker and multiplication, and the Green Recipe which broke down an epic into user stories first. However, neither scale worked well for very large epics. They adapted by using a recently sized existing epic as a benchmark and rescaling. This allowed them to estimate the sizes of three sample epics as 5, 8, and 20 epic points, providing high-level sizing while addressing the issues of comparing variable epics.