Go ahead and make an investigation check Tik-tok and Elsa

Everyone feels as if they can see better in this room now with plenty of torn and tattered books laying on the group

Sully calls to the others, "anyone good with words?  It looks like something is appearing in this book."

Tik-tok investigation check on the giant book:  19

Tik-tok:

Elsa investigation: 9

“What was it we were sent here for again?”

”We’re looking for Peter Pan.” Noticing Elsa, probably for the first time, Hathi says, “Excuse me, miss, who are you and what are you doing here?”

”Ahh, right. Well it looks like this is a dead end.” Turning to Else “Have you seen anyone else in here?”

"I have come for knowledge." Tik-tok responds to Cheshire's question, though displays no motion towards Tabaxi, including even looking in his general direction. Instead Tik-tok offered the delayed sentence and continues looking into the giant book that the party had just felled. To no one in particular he announces what's within the pages, "The book, depicts images that are likely ourselves. At this time, there is not enough information as to the purpose, or the magic behind it."

Tik-tok continues to try to read the book on an effort to understand if it is trying to send a message to the group. (ie. If it's predicting future events, just showing what is around it at the present time, showing anything to provide an idea of any actions beyond the group just standing there, etc.)

“Pictures of me?! Why it might finally be a book worth reading!” Cheshire moves over standing next to Tik-Tok he mimics the mechanical mans pose as best he can. 

Cheshire give me a perception check with advantage since you know what to look for

Perception : 10

Cheshire The book seems to be writing and creating images for its pages and the title of the current page is "Heroes". You see the furry monk, the queen and the machine man drawn and see that the book is starting to draw someone else and you see ears and a tail.

Cheshire squats down watching in expectation. Then glances up at TikTok “Sow which one is supposed to be me?”

Elsa looks around, but does not see her sister anywhere. Realizing she must not have been there, she tries to get herself reoriented to the situation at hand.

"So who are you all?" She asks those who helped her fight the books. "I am Elsa." She says, deciding to leave off her titles for now.

Momentarily entranced by the images appearing in the book, Sully shakes his head to clear it as Elsa introduces herself.  "James P. Sullivan, ma'am, but you can call me Sully."

“Sully? What an unusual name for a Bandersnatch. Though you do seem to be of an unusual sort anyways.” Cheshire moves over to sully circling him closely as he speaks. “I don’t believe I’ve ever heard of a domestic one before.”

Aware that the Cheshire had been addressing him, when asking the question as to which drawing was intended to be him, Tik-tok considered replying to be of a lower priority than reading further in the book, and investigating what other information it could hold. After receiving nothing further, he stands up and reaches the point on the list. "Most likely the one with ears and a tail similar to your own physical description." However, he didnt project louder than he would have, had Cheshire still been next to him; even though he had already moved on towards Sully.

Tik-tok then observes the area surrounding them attempting to identify if his time is better spent looking for any deeper routes that may house useful information, or simply to follow his arrows, back out of the library.

Bouncing back over to TikTok he takes a closer look at the picture. “That’s really what I look like?!?” He looks it over and considers for a moment “Could certainly be worse I suppose. I do make this whole two legs thing look good!”

"Bandersnatch?  Who? Where? Wha?  Oh, wait, me?  Nah, I'm no bandersnatch, just a simple goliath," Sully stammers before finally understanding.