The grammar in the monstrology tome is very screwed up. Common mistakes is the mixups of they're and their. There is a also a common problem with boss monsters being referred to in the plural. For example the description for Mimir Winterbane is as follows: Winter is the bane of their existence, they'd rather be hibernating. I don't know if it's wrong to use their and they in this case but it certainly sounds off. I'm no grammar expert and I'm not trying to be a grammar nazi. But some of it just seems off.