A note from Tibia Fandom cites its language as a way to solve a secret, as if it kept something that still needs to be resolved, many players speculate on the subject but nothing is known yet.
Baby Bonelord | TibiaWiki | Fandom
Or is it just an unsolvable mathematical problem?
Many of us have heard of or even tried to solve the language of Bonelord 469. In written form 469, it appears as a coded sequence of numbers, as if a mathematical solution needs to be solved. But nothing is certain, just theories and with the arrival of Baby Bonelord for 250 Tibia Coins in Tibi aStore many believe that it is more a clue or a sequence that there is something to solve.
Two books related to 469 at the Ilha dos Reis Library, one talks about race and the other is written in full in 469, but does not fully clarify our doubts.
Beware of the Bonelords (Book) | TibiaWiki | Fandom
" In December 2013, Isoge suggests that the use of real-life number encoding was used to create 469. For example, he used dictionaries to decode 469 as "Bonelord" means."
Tibia - Free Multiplayer Online Role Playing Game - Forum
469 | TibiaWiki | Fandom
Many attack a possible lead, but nothing has been declared.
Bonelord Baby é uma pista da linguagem 469? [Nalu] · Tibia Down
Answering your question, it is believed to be a numerical sequence with which it relates to Bonelord's 469 language.