Ace's Van

This isn't a big location, since it's just an ice cream truck. It's white, it has an ice cream motif (?) and it's full of weapons.

Contents
If your ice cream is weaponry that ranges from things like rifles, handguns, crossbows, swords and knives, then there definitely IS ice cream in that van. Going by other things in the back of the can, like a cooler (which could have severed heads in it), an open pack of cigarettes (Ya gotta have smokes when you're done with your victims!), cigarette butts, and what's either a sleeping bag, or a large pillow. There is also a backpack, a crushed soda can, and a shirt.

Inside of that backpack, as far as we know, is only a book that was found by one of Ace's "Friends". It's basically a book about the Animated and a few other things.

The Book
Now, the book mentioned above is purple, with a black title box on the very front of it. It lacks any markings other than a punch of spades, like from cards. It also has a lock on it. This book has some weird abilities. Mainly, when opened, pictures let off smoke that form different pictures, which is kinda cool.

Now, something worth noting is all the spades all over it. That may seem kind of unimportant, but going by artwork made by Niko and Cokkie, cards are important.

Ace is not only a name, it's basically the 'One' card. Joki alludes to the Joker, which is shown by the Colorless Twitter page posting a picture of a Joker, Ace and Jack card. Joki is a lot closer to Joker than Jack. Also, Ace is has Diamonds, a card symbol on his mask.

This book is obviously important because it's tying in with the main card theme!

It also could be considered important due to all of it's crucial information about how to get the fuck out of Aisho.