this has… a lot of pieces.
According to Book 3, the 3 types of ECCENTRIC INTERESTS that Grandpa had are very unrandom. In addition to all being red herrings about what big puppet would be prototyped for Jade, they each loosely connect to one of the other Alphas, seen in the colour tint of the rooms they were kept in. Grandpa's own uncoloured room has animals bc guns. Orange room has knights bc Dirk's a skilled swordsman. Pink room has mummies bc LOPAN. Light blue room has blue beauties bc Jane is his long-lost blue lady.