Talk:Your Mystical Bookshelf

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So are you allowed to use each tome 3 times or a combination of them a total of 3 times? --Lemon-claw 10:13, 2 September 2009 (UTC)

  • You can use your tomes a total of 3 times per day, either 3 of the same or a combination of tomes. --BongBob 10:15, 2 September 2009 (UTC)

I don't think the Libram MP cost mechanic is the same anymore. I'm currently wearing:

By my reckoning, the only MP cost modifier I have is the navel ring, which is -1. (This is confirmed by the fact that my skills dropdown offers Empathy for 14 MP.) However, my casting costs for Candy Hearts did not go 1, 2, 5, as one would expect (regularly 1, 3, 6). Instead, my first two casts each cost 1 MP, and the bookshelf now offers my third cast for 3 MP, which means that it's normally 4. I think we've got a different mechanic now. --Southwest 00:16, 4 January 2008 (CST)

  • I saw something similar to that, I just thought that i had minus mp effects on, my first three were 1, 2, 4 ut i lost track after that. --Chunky_boo 00:25, 4 January 2008 (CST)

Apparently the new mechanic allows one to summon at the costs of: 1, 2, 4, 7, 11, 16, 22, 29, 37, 46, 56... The pattern is similar to the old casting costs. the cast cost increases with increasing integral differences, meaning the difference between consecutive casts are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ... Could someone confirm? On another note, does Summon Candy Heart and Summon Party Favor share the same cost? i.e. if it costs X MP to summon candy heart, does it cost X MP to summon party favor even if you haven't summoned any party favor yet for the day?--Stevetek 02:03, 4 January 2008 (CST)

  • I can confirm this new casting cost. Will update the article --Nossidge 11:57, 4 January 2008 (CST)
You're right. I miscalculated the amount of -MP I had on when I imported that table over. The new distribution is correct.--Toffile 12:10, 4 January 2008 (CST)

Apparently, the casting cost of the tome on the bookshelf IS affected by dreams and lights. I cast for summon party favors at 1 MP each.--Thudean 10:09, 12 January 2008 (CST)

"Multiple Lifetime Guarantee?"

Does this carry over when you ascend?


Bookshelf and books disappear completely and needs to be reacquired by repurchasing the books?


Bookshelf disappears and books get stored at Hagnk's --Stevetek 02:07, 4 January 2008 (CST)

Being as they're all Mr. A items, they won't disappear completely. My guess is that the bookshelf carries over when you ascend, but disappears when you enter bad moon, reappearing when you ascend normally again.

some confirmation about when the bookshelf can be accessed (HC, ronin, etc.) would be good. I would guess it is accessible during HC, since Summon candy hearts was a HP skill, but I have none of these skills and can't confirm.--Godica 17:23, 5 January 2008 (CST)

Yeah, it's available during HC. I'm in a very slow HC run, and I've been using the books. --Adam 20:44, 10 January 2008 (CST)

Javascript Code

The javascript code is: javascript: void(mainpane.location="campground.php? action=bookshelf"); -- dewhashish, 1:40, January 4th, 2008 (EST)

MP Cost

I was just able to get some Hilarious Objects for 2MP, then buy two Divine Party Favours at 1MP each... then it went to 4MP and 8MP. I just ascended - maybe there's a special mechanic for L1 characters, or could it be because I'm using the Blender sign? -- JimGamma, 18:47, January 30 2008 (GMT)

The formula for cumulative MP cost of n libram items is perhaps more simply expressed as ((n-1)*n*(n+1)/6)+n, which can also be simplified to ((n^3-n)/6)+n or (n^3+5*n)/6. --DoraB 01:45, 1 May 2009 (UTC)

Integer sequences

Of minor interest, I know, but for the number-fetishists among us the MP Cost and Total MP sequences for Librams are sequences A000124 and A004006 respectively in the On-Line Encyclopaedia of Integer Sequences. --Kay Dekker 01:59, 2 March 2010 (UTC)

  • The number fetishists probably recognize the sequences already, even if they did't know the id numbers. The 124 sequence is a really simple one. (Incidentally the largest common factor if the two sequence ids is two.) --Club (#66669) (Talk) 06:32, 2 March 2010 (UTC)

New players?

The article says "The bookshelf was implemented on January 3rd, 2008, as a way to limit the disadvantage that new players down the line would experience by missing out on powerful, limited-time-only spellbooks such as the Tome of Snowcone Summoning." I fail to see how having a bookshelf to cast the skills from is any different than having the skill permed. Can someone explain this? --Bobson 12:38, 31 December 2010 (UTC)

  • It's not really well-worded. Essentially, it gave the developers a way to group certain spellbook spells so that they could be restricted in usage...thus, a player with all three Tome spells (snowcone, sugar, stickers) has a smaller advantage against the newer player who was only around for sugar. The bookshelf itself is only a way to conceptualize this restriction.--Foggy 20:26, 31 December 2010 (UTC)