It is indicated that the Five Nations Confederate Lords integrate a conglomerate, and so a link is formed between them.
The figurative language is introduced when a heavy burden or a hard-to-handle situation stands before the Confederate Lords, and these issues are represented as a tree (a heavy object) that falls over the Lords' link.
The purpose of this metaphore is to declare that the link joining the Confederate Lords must endure against all things.
The alphabet started to change, and so did the dialogue. "The letter thorn<span> (þ), which began to be replaced by </span>th<span> " many other letters changed as well.</span>
