Arceuus Library

This article is about the library in Great Kourend. For other libraries, see Library.

Arceuus Library
Released		7 January 2016 (Update)
Also called		Grand Library of Great Kourend
Members		Yes
Floors		3
Location		Arceuus (Great Kourend)
Inhabitants		Citizen of Arceuus
Map
Advanced data
Type		building

The Arceuus Library, also known as the Grand Library of Great Kourend, is a large library found in Arceuus. Created during the attack of the Wintertodt (known then as the Winter Beast) 1,360 years ago, its construction was ordered by Lord Arceuus I, who requested all citizens submit writing, texts, documents and research from all cities in order to preserve the history of Great Kourend.

Important historical documents, such as the Official Order of Construction, are stored in the Library Historical Archive, a repurposed chamber of the Tower of Magic, for further study and additional protection. Players can access the Archive by speaking to Archeio on the ground floor.

The library can quickly be reached by paying Trossa 80,000 coins once, allowing the player to use the fairy code CIS.

Gaining favour

The Library is the location in which players gain favour with Arceuus by speaking to either Sam, Professor Gracklebone or Villia to search bookcases for books or scrolls around the library for them. Finding the correct asked for text, it will result in 2.5% favour gained and a book of arcane knowledge.

Once players reach 20% favour, they may speak to Horphis, an Arceuus resident who requires help looking for dark manuscripts. Each of these manuscripts that are given to him will grant players 5% favour and a book of arcane knowledge.

The locations of the books and manuscripts can be extremely narrowed down by speaking to Biblia on the top floor, who will narrow the location of the text the player is looking for down to the floor level and the section of the floor where a requested book is located.

While the location of the books vary between worlds, the location of the dark manuscripts vary between players, and the locations of both reset after 80–100 minutes. Note that if a player is required to find either of the books Transportation Incantations or Soul journey, it is recommended to read them, as doing so will unlock the Kourend Castle Teleport spell and start the Bear Your Soul miniquest respectively.

Strategy

It is recommended to have light-weight/weight-reducing clothing such as the graceful outfit, or multiple stamina potions.

It is highly recommended that players speak to Biblia on the top floor to be told which room the requested book is located.

Alternatively, the Kourend Library RuneLite plug-in will locate and highlight books and dark manuscripts.

You may collect books other than those currently being requested to be more quickly prepared for future requests. The drop trick does not work and you cannot bank the books. After you give a book to a customer, it is recommended to return to the same location and get another copy of the book, in case it is requested again. If you choose not to do this, however, and the same book is requested before the location change, the book will still be found at the same location. Around every 80–100 minutes, all of the locations of books and manuscripts change.

The quickest way to gain favour and experience is to coordinate with other players on finding books by sharing locations and collecting even the books you do not yet need. Players who do not want help from other players should go to a world with few players to increase the time between location resets, and take note of the locations of books. With few players online, the locations may stay the same for over an hour. If you wish neither to share book locations with other players nor to write down/memorise book locations, it is faster to search for dark manuscripts after 20% favour. However, manuscripts are more difficult to coordinate upon.

After reaching 20% favour, players can start helping Horphis in addition to finding books for customers. Horphis is a dark wizard interested in finding dark manuscripts. However, unlike books, you may only find the dark manuscript assigned to you. Biblia on the top floor will tell you which room the manuscript is in. Each time you collect a manuscript, a new room is randomly chosen to hold the next dark manuscript assigned to you. Although the new room is chosen randomly, the manuscripts, like the books, have pre-set locations in each room (max 2 per room), so it is likely that two players randomly assigned the same room will have the same manuscript location. Additionally, you do not need to return to Horphis before you are able to collect additional manuscripts, so if you are already on the top floor after finding a manuscript, a good strategy is to immediately talk to Biblia to find the location of your next dark manuscript. Horphis will collect all manuscripts in your inventory at once and return an equal number of skill books when you speak to him.

You can use the Arceuus Library Books Calculator to determine how many books are needed to reach a target level or XP. When a book is used, it grants Magic experience equal to the player's Magic level times 11 or Runecraft experience equal to their Runecraft level times 4.

The tables below show the progress each tome will grant.

Runecrafting

Level	XP/Tome	% of Level/Tome	Tomes needed to Level
1	4	4.82%	21
2	8	8.79%	12
3	12	11.76%	9
4	16	14.29%	7
5	20	16.13%	7
6	24	17.39%	6
7	28	18.54%	6
8	32	19.05%	6
9	36	19.46%	6
10	40	19.61%	6
11	44	19.47%	6
12	48	19.28%	6
13	52	18.98%	6
14	56	18.42%	6
15	60	17.91%	6
16	64	17.34%	6
17	68	16.67%	6
18	72	16.00%	7
19	76	15.29%	7
20	80	14.60%	7
21	84	13.86%	8
22	88	13.19%	8
23	92	12.48%	9
24	96	11.79%	9
25	100	11.14%	9
26	104	10.51%	10
27	108	9.87%	11
28	112	9.28%	11
29	116	8.71%	12
30	120	8.16%	13
31	124	7.64%	14
32	128	7.15%	14
33	132	6.68%	15
34	136	6.23%	17
35	140	5.81%	18
36	144	5.42%	19
37	148	5.04%	20
38	152	4.69%	22
39	156	4.36%	23
40	160	4.05%	25
41	164	3.76%	27
42	168	3.49%	29
43	172	3.24%	31
44	176	3.00%	34
45	180	2.78%	36
46	184	2.58%	39
47	188	2.38%	42
48	192	2.21%	46
49	196	2.04%	50
50	200	1.88%	54
51	204	1.74%	58
52	208	1.61%	63
53	212	1.48%	68
54	216	1.37%	73
55	220	1.26%	80
56	224	1.17%	86
57	228	1.07%	94
58	232	0.99%	101
59	236	0.91%	110
60	240	0.84%	119
61	244	0.77%	130
62	248	0.71%	141
63	252	0.66%	153
64	256	0.60%	166
65	260	0.56%	181
66	264	0.51%	196
67	268	0.47%	213
68	272	0.43%	232
69	276	0.40%	253
70	280	0.36%	275
71	284	0.33%	299
72	288	0.31%	326
73	292	0.28%	355
74	296	0.26%	386
75	300	0.24%	421
76	304	0.22%	458
77	308	0.20%	499
78	312	0.18%	544
79	316	0.17%	593
80	320	0.15%	647
81	324	0.14%	705
82	328	0.13%	769
83	332	0.12%	839
84	336	0.11%	915
85	340	0.10%	998
86	344	0.09%	1089
87	348	0.08%	1189
88	352	0.08%	1297
89	356	0.07%	1416
90	360	0.06%	1546
91	364	0.06%	1688
92	368	0.05%	1844
93	372	0.05%	2014
94	376	0.05%	2200
95	380	0.04%	2403
96	384	0.04%	2626
97	388	0.03%	2869
98	392	0.03%	3135
99	396	0.00%	4000

Magic

Level	XP/Tome	% of Level/Tome	Tomes needed to Level
1	11	13.25%	8
2	22	24.18%	5
3	33	32.35%	4
4	44	39.29%	3
5	55	44.35%	3
6	66	47.83%	3
7	77	50.99%	2
8	88	52.38%	2
9	99	53.51%	2
10	110	53.92%	2
11	121	53.54%	2
12	132	53.01%	2
13	143	52.19%	2
14	154	50.66%	2
15	165	49.25%	3
16	176	47.70%	3
17	187	45.83%	3
18	198	44.00%	3
19	209	42.05%	3
20	220	40.15%	3
21	231	38.12%	3
22	242	36.28%	3
23	253	34.33%	3
24	264	32.43%	4
25	275	30.62%	4
26	286	28.89%	4
27	297	27.15%	4
28	308	25.52%	4
29	319	23.95%	5
30	330	22.45%	5
31	341	21.01%	5
32	352	19.65%	6
33	363	18.36%	6
34	374	17.14%	6
35	385	15.98%	7
36	396	14.90%	7
37	407	13.87%	8
38	418	12.90%	8
39	429	12.00%	9
40	440	11.15%	9
41	451	10.35%	10
42	462	9.60%	11
43	473	8.91%	12
44	484	8.26%	13
45	495	7.65%	14
46	506	7.08%	15
47	517	6.56%	16
48	528	6.06%	17
49	539	5.61%	18
50	550	5.18%	20
51	561	4.79%	21
52	572	4.42%	23
53	583	4.08%	25
54	594	3.77%	27
55	605	3.48%	29
56	616	3.21%	32
57	627	2.96%	34
58	638	2.72%	37
59	649	2.51%	40
60	660	2.31%	44
61	671	2.13%	47
62	682	1.96%	52
63	693	1.80%	56
64	704	1.66%	61
65	715	1.53%	66
66	726	1.40%	72
67	737	1.29%	78
68	748	1.19%	85
69	759	1.09%	92
70	770	1.00%	100
71	781	0.92%	109
72	792	0.85%	119
73	803	0.78%	129
74	814	0.71%	141
75	825	0.65%	153
76	836	0.60%	167
77	847	0.55%	182
78	858	0.51%	198
79	869	0.46%	216
80	880	0.43%	235
81	891	0.39%	257
82	902	0.36%	280
83	913	0.33%	305
84	924	0.30%	333
85	935	0.28%	363
86	946	0.25%	396
87	957	0.23%	433
88	968	0.21%	472
89	979	0.19%	515
90	990	0.18%	563
91	1001	0.16%	614
92	1012	0.15%	671
93	1023	0.14%	733
94	1034	0.13%	800
95	1045	0.11%	874
96	1056	0.10%	955
97	1067	0.10%	1044
98	1078	0.09%	1140
99	1089	0.00%	2000

List of texts in the Arceuus Library

Image	Title	Also known as	Author	Additional Features
	Byrne's coronation speech	Speech of King Byrne I
	Eathram & rada extract	An extract from Eathram & Rada	Anonymous
	Hosidius letter	A letter from Lord Hosidius to the Council of Elders	Lord Hosidius
	Ideology of darkness	The Ideology of Darkness	Philophaire
	Killing of a king	Killing of a King	Griselle
	Rada's census	Census of King Rada III	Matthias Vorseth
	Rada's journey	The Journey of Rada	Griselle
	Ricktor's diary (7)	Diary of Steklan Ricktor, volume 7	Steklan Ricktor
	Soul journey	The Journey of Souls	Aretha	Reading it begins the Bear Your Soul miniquest.
	Transportation incantations	Transportation Incantations	Amon Ducot	Unlocks Kourend Castle Teleport in the standard spellbook. Requires 69 Magic to cast.
	Transvergence theory	The Theory of Transvergence	Amon Ducot
	Treachery of royalty	The Treachery of Royalty	Professor Answith
	Tristessa's tragedy	The Tragedy of Tristessa
	Twill accord	The Royal Accord of Twill
	Varlamore envoy	The Envoy to Varlamore	Deryk Paulson	Obtained during The Depths of Despair quest, then normally available within the Library.
	Wintertodt parable	The Parable of the Wintertodt	Anonymous

Changes

Date	Changes
29 March 2023 (update)	Players inside the Arceuus library will now receive a message letting them know when the books have shifted locations.

Trivia

• On the day of release, the experience reward for books of arcane knowledge was significantly nerfed because the sheer number of people searching for books made helping and location-calling extremely easy, and helping customers granted exceptional Runecraft experience.
• On the day of release, mithril seeds were used to mark the locations of books, but this became less effective as crowds thinned out over time.