Altaïr will be poring over the oldest, dustiest texts he can find in the Great Library—not looking for answers, exactly, because obviously clear-cut answers regarding the world tree a prophecies would have been found already. Rather, he's looking for stories, legends—anything that is obviously not meant to be factual accounts...but that might still hold the seedling of an idea, or point him toward somewhere else he can look.
HANDWAVED RESEARCH/QUESTION - ALTAIR
(Will he find anything?)