My Library – 3e-mgp-sg19
Slayer’s Guide to Derro
Dungeons and Dragons 3rd Edition
- Publisher: Mongoose Publishing
- Rules: Dungeon & Dragons 3rd Edition
- Series: Slayer’s Guide (mgp0019)
- Author:

The dwarven races are quite diverse, but perhaps the most deviant, both physically and mentally, is the derro. Though seen as corrupt and malignant by most of their kin, derro perceive themselves as superior to their brethren. They scoff at their brethren’s naïve notion of blind obedience to kin and kith. For derro, it is power that should be respected and nothing else. Guided by this precept, the derro follow the powerful not out of any sense of loyalty toward them but because it is from them that power can be derived. This lust for power drives derro from birth to death in a never-ending struggle for personal glory and honour.
Lurking just below the surface, derro have been, for most players and Games Masters, an unseen menace. This Slayer’s Guide shall remedy that situation. No longer shall derro be ignored as a race buried beneath the ground or an adversary caged in the caverns of the hidden world below. The sun can not keep the derro from what is rightfully theirs forever.
What is My Library
My Library is a section of my blog dedicated to the reference of material I am using in my games and linking it back to the sourcebooks I am using. It is also a handy way to keep track of the material I have.
It is intended as a reference section for personal use, any other use is just a bonus.
Library Overview Page
D&D BECMI (0e)
Rulebooks (0e-rb): rc
Adventures (0e-adv): b1, b19, x11, x12
Wrath of the Immortals (0e-wi): bs, bs1, bs2
Creature Crucible (0e-pc): 01, 02, 03, 04
Gazetteers (0e-gaz): 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, box, box1, box2, box3
Hollow World (0e-hw): a1, a2, a3, cs, dms, pg, q1, r1, r2, r3
D&D 3rd Edition (3rd Party Products)
AEG (3e-aeg)
– Accessories: aa1, aa2, adr, adu, aem, aev, afe, agd, ago, agu, ama, ame, amo, arb, are, ase, atb, aun, awa, awi
– Worlds Largest: wlc, wld
Fantasy Flight Games
– Dragonstar (3e-ffg-ds): ec, gg, is, pc, sh, sr
– Horizon (3e-ffg-hs): mec
– Legends & Lairs (3e-ffg-ll): ma, pm, ss
Mongoose Publishing (3e-mgp)
– Complete Campaigns:: cc01, cc02, cc03, cc04, cc06
– Cities of Fantasy: cf01, cf02, cf03, cf04, cf05
– Classic Play: cp01, cp02, cp03, cp04, cp05, cp06, cp81, cp82
– Encyclopaedia Arcane: ea01, ea02, ea03, ea04, ea05, ea06, ea07, ea08, ea09, ea10, ea11, ea12, ea13, ea14, ea15, ea16, ea17, ea18, ea19, ea20, ea21, ea22, ea23, ea24, ea25, ea26, ea97
– Epic Players Guide: epg20, epg21, epg22
– Gladiator: gsd
– Monster Encyclopaedia: me50, me51
– Power Classes: pc01, pc02, pc03, pc04, pc05, pc06, pc07, pc08, pc09, pc10, pc11, pc12, pc13
– Quintessential Collector: qc01, qc02, qc03, qc04, qc05, qc06, qc07, qc08, qc09, qc10, qc11, qc12, qc13, qc14, qc15, qc16, qc17, qc18, qc19, qc20, sc21, qc22, qc23, qc41, qc42, qc43, qc44, qc45, qc46, qc47, qc48, qc49, qc50, qc51, qc52, qc91, qc92, qc93
– Slayer’s Guides: sg01, sg02, sg03, sg04, sg05, sg06, sg07, sg08, sg09, sg10, sg11, sg12, sg13, sg14, sg15, sg16, sg17, sg18, sg19, sg20, sg21, sg22, sg23, sg25, sg26, sg27, sg28, sg29, sg30, sg95, sg96, sg98, sg99
– The Planes: tp01, tp02, tp94
– Travellers Tales: tt01, tt02, tt03, tt04, tt05
– Ultimate Handbooks: uh01, uh02, uh03, uh05, uh05, uh06, uh07, uh08, uh09, uh10, uh11, uh13, uh14, uh15
Paizo (3e-pzo)
– AP01 – Rise of the Runelords (3e-pzo-rotr): b1, b2, b3, b4, b5, b6, dice, map, pg
– AP02 – Curse of the Crimson Throne (3e-pzo-cct): b1, b2, b3, b4, b5, b6, dice, map, pg
– AP03 – Second Darkness (3e-pzo-sd): b1, b2, b3, b4, b5, b6, dice, map, pg
– AP04 – Legacy of Fire (3e-pzo-lof): b1, b2, b3, b4, b5, b6, dice, map, pg
D&D 5th Edition (5e)
Wizards of the Coast (5e-wiz): ai, bgda, cos, cosrv, dmg, dms, ggr, gos, hdq, mm, mtf, oota, ph, pota, psa, psz, scag, skt, tod, trot, typ, vgm, wdh, wdmm, xge
EN Publishing (5e-enp): et1, et2, etaa, etaw, etrh, etrla
Frog God Games (5e-fgg): bls, bp, bpa, fef, ra, wllra
Goodman Games (5e-gmg): oar1, oar2, oar3, oar4, oar5
Green Ronin (5e-grr): br, tcs
Kobold Press (5e-kob): cc, dm, dm01, dm02, dm03, dm04, dm05, dm06, dm07, dm08, dm09, dm10, dm11, dm12, dm13 dm14, dm15, dm16, dm17, dm18, dm19, dm20, mhh, mw, tob, tob-pawn, tob2, tob2-lair, rob2-pawn
Legendary Games (5e-leg): fkcc, pcc
Rite Publishing (5e-rip): cod
Web Resource (53-web): mph
d20 OGL (3eogl)
– Mongoose Publishing (3eogl-mgp): cyb, spk
Fate
– Dresden Files (fate-df): v1, v2, v3
– Fate Accelerate (fae): fcb, dfa
Pathfinder 1st Edition
– Paizo Rulebooks (pf1-rb): uc
– Campaign Setting (pf1-pcs): psfg,
– Chronicles (pf1-pch): grk, sos
– Companion (pf1-pco): dep
– Modules (pf1-mod): gh, mm
– Return of the Runelords (pf1-rr): b1
– Anniversary Editions (pf1): cotct-ae, rotr-ae, rotr-pg
– Legendary Games (pf1-leg): fkcc, pcc
– Midgard Setting (pf1-kob): mwb
– PFS Organised Play Intro (pf1-pso-intro) fs1, fs2, fs3
– PFS Organised Play Season 1 (pf1-pso-so1) 51
– AP05 – Council of Thieves (pf1-ct): b1, b2, b3, b4, b5, b6, map, pg
– AP06 – Kingmaker (pf1-km): b1, b2, b3, b4, b5, b6, map, pg
– AP07 – Serpent’s Skull (pf1-ser): b1, b2, b3, b4, b5, b6, map, pg
– AP08 – Carrion Crown (pf1-cc): b1, b2, b3, b4, b5, b6, map, pg
– AP09 – Jade Regent (pf1-jr): b1, b2, b3, b4, b5, b6, map, pg
– AP10 – Skull and Shackles (pf1-sku): b1, b2, b3, b4, b5, b6, pg
– AP11 – Shattered Star (pf1-ss): b1, b2
Pathfinder 2nd Edition
– Core Rules (pf2-rb): apg, b1, b2, cr, gg
– Adventures (pf2-mod): dd
– Lost Omens (pf2-lo): cg, gm, leg, psg, wg
Babylon 5:
– 1st Ed Rules (br-mgp-1cr): rpg, pe
– 1st Ed Adventure (b5-mgp-1ad): as, ft, ic
– 2nd Ed Adventure (b5-mgp-2ad): ffs
– 1st Ed Fact Books (b5-mgp-1fb): cr, ea, lnaw, mf, nr, tm, vs
– 1st Ed Source Book (b5-mgp-1sb): ef, fm, gg, mtr, pc, ra, zo
– 2nd Ed Source Book (b5-mgp-2sb): dr, ipx, lgfs, lgg, lgp, lgt, rim, sbm, sg
– 1st Ed Time Line (b5-mgp-1tl): s2, s3, s4, s5, s6
– 2nd Ed Time Line (b5-mgp-2tl): lr
– 2nd Ed Ship Plans (b5-mgp-2sp): v3
Super Heroes:
– Sentinels Comics (hs-sc): cr, sk
Star Wars Fantasy Flight Games
– Beginner (sw-ffg-b): ar, ee, fa, fd
– Age of Rebellion (sw-ffg-ar): cr, cm, da, fb, fo, ft, gmk, le, oa, sr, st
– Edge of the Empire (sw-ffg-ee): cr, br, bcr, dc, eu, fc, fh, gmk, jy, ln, mp, nd, sm, sf
– Force and Destiny (sw-ffg-fd): cr, cg, dh, ev, gh, gmk, kf, kp, np, ss, up
– Setting (sw-ffg-s): aa, cr, dr, gg, rs, ss
Online Resources (web): dWiki, pWiki, sWiki, vop
Content Updates
Library Overview Page
D&D BECMI (0e)
Rulebooks (0e-rb): rc
Adventures (0e-adv): b1, b19, x11, x12
Wrath of the Immortals (0e-wi): bs, bs1, bs2
Creature Crucible (0e-pc): 01, 02, 03, 04
Gazetteers (0e-gaz): 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, box, box1, box2, box3
Hollow World (0e-hw): a1, a2, a3, cs, dms, pg, q1, r1, r2, r3
D&D 3rd Edition (3rd Party Products)
AEG (3e-aeg)
– Accessories: aa1, aa2, adr, adu, aem, aev, afe, agd, ago, agu, ama, ame, amo, arb, are, ase, atb, aun, awa, awi
– Worlds Largest: wlc, wld
Fantasy Flight Games
– Dragonstar (3e-ffg-ds): ec, gg, is, pc, sh, sr
– Horizon (3e-ffg-hs): mec
– Legends & Lairs (3e-ffg-ll): ma, pm, ss
Mongoose Publishing (3e-mgp)
– Complete Campaigns:: cc01, cc02, cc03, cc04, cc06
– Cities of Fantasy: cf01, cf02, cf03, cf04, cf05
– Classic Play: cp01, cp02, cp03, cp04, cp05, cp06, cp81, cp82
– Encyclopaedia Arcane: ea01, ea02, ea03, ea04, ea05, ea06, ea07, ea08, ea09, ea10, ea11, ea12, ea13, ea14, ea15, ea16, ea17, ea18, ea19, ea20, ea21, ea22, ea23, ea24, ea25, ea26, ea97
– Epic Players Guide: epg20, epg21, epg22
– Gladiator: gsd
– Monster Encyclopaedia: me50, me51
– Power Classes: pc01, pc02, pc03, pc04, pc05, pc06, pc07, pc08, pc09, pc10, pc11, pc12, pc13
– Quintessential Collector: qc01, qc02, qc03, qc04, qc05, qc06, qc07, qc08, qc09, qc10, qc11, qc12, qc13, qc14, qc15, qc16, qc17, qc18, qc19, qc20, sc21, qc22, qc23, qc41, qc42, qc43, qc44, qc45, qc46, qc47, qc48, qc49, qc50, qc51, qc52, qc91, qc92, qc93
– Slayer’s Guides: sg01, sg02, sg03, sg04, sg05, sg06, sg07, sg08, sg09, sg10, sg11, sg12, sg13, sg14, sg15, sg16, sg17, sg18, sg19, sg20, sg21, sg22, sg23, sg25, sg26, sg27, sg28, sg29, sg30, sg95, sg96, sg98, sg99
– The Planes: tp01, tp02, tp94
– Travellers Tales: tt01, tt02, tt03, tt04, tt05
– Ultimate Handbooks: uh01, uh02, uh03, uh05, uh05, uh06, uh07, uh08, uh09, uh10, uh11, uh13, uh14, uh15
Paizo (3e-pzo)
– AP01 – Rise of the Runelords (3e-pzo-rotr): b1, b2, b3, b4, b5, b6, dice, map, pg
– AP02 – Curse of the Crimson Throne (3e-pzo-cct): b1, b2, b3, b4, b5, b6, dice, map, pg
– AP03 – Second Darkness (3e-pzo-sd): b1, b2, b3, b4, b5, b6, dice, map, pg
– AP04 – Legacy of Fire (3e-pzo-lof): b1, b2, b3, b4, b5, b6, dice, map, pg
D&D 5th Edition (5e)
Wizards of the Coast (5e-wiz): ai, bgda, cos, cosrv, dmg, dms, ggr, gos, hdq, mm, mtf, oota, ph, pota, psa, psz, scag, skt, tod, trot, typ, vgm, wdh, wdmm, xge
EN Publishing (5e-enp): et1, et2, etaa, etaw, etrh, etrla
Frog God Games (5e-fgg): bls, bp, bpa, fef, ra, wllra
Goodman Games (5e-gmg): oar1, oar2, oar3, oar4, oar5
Green Ronin (5e-grr): br, tcs
Kobold Press (5e-kob): cc, dm, dm01, dm02, dm03, dm04, dm05, dm06, dm07, dm08, dm09, dm10, dm11, dm12, dm13 dm14, dm15, dm16, dm17, dm18, dm19, dm20, mhh, mw, tob, tob-pawn, tob2, tob2-lair, rob2-pawn
Legendary Games (5e-leg): fkcc, pcc
Rite Publishing (5e-rip): cod
Web Resource (53-web): mph
d20 OGL (3eogl)
– Mongoose Publishing (3eogl-mgp): cyb, spk
Fate
– Dresden Files (fate-df): v1, v2, v3
– Fate Accelerate (fae): fcb, dfa
Pathfinder 1st Edition
– Paizo Rulebooks (pf1-rb): uc
– Campaign Setting (pf1-pcs): psfg,
– Chronicles (pf1-pch): grk, sos
– Companion (pf1-pco): dep
– Modules (pf1-mod): gh, mm
– Return of the Runelords (pf1-rr): b1
– Anniversary Editions (pf1): cotct-ae, rotr-ae, rotr-pg
– Legendary Games (pf1-leg): fkcc, pcc
– Midgard Setting (pf1-kob): mwb
– PFS Organised Play Intro (pf1-pso-intro) fs1, fs2, fs3
– PFS Organised Play Season 1 (pf1-pso-so1) 51
– AP05 – Council of Thieves (pf1-ct): b1, b2, b3, b4, b5, b6, map, pg
– AP06 – Kingmaker (pf1-km): b1, b2, b3, b4, b5, b6, map, pg
– AP07 – Serpent’s Skull (pf1-ser): b1, b2, b3, b4, b5, b6, map, pg
– AP08 – Carrion Crown (pf1-cc): b1, b2, b3, b4, b5, b6, map, pg
– AP09 – Jade Regent (pf1-jr): b1, b2, b3, b4, b5, b6, map, pg
– AP10 – Skull and Shackles (pf1-sku): b1, b2, b3, b4, b5, b6, pg
– AP11 – Shattered Star (pf1-ss): b1, b2
Pathfinder 2nd Edition
– Core Rules (pf2-rb): apg, b1, b2, cr, gg
– Adventures (pf2-mod): dd
– Lost Omens (pf2-lo): cg, gm, leg, psg, wg
Babylon 5:
– 1st Ed Rules (br-mgp-1cr): rpg, pe
– 1st Ed Adventure (b5-mgp-1ad): as, ft, ic
– 2nd Ed Adventure (b5-mgp-2ad): ffs
– 1st Ed Fact Books (b5-mgp-1fb): cr, ea, lnaw, mf, nr, tm, vs
– 1st Ed Source Book (b5-mgp-1sb): ef, fm, gg, mtr, pc, ra, zo
– 2nd Ed Source Book (b5-mgp-2sb): dr, ipx, lgfs, lgg, lgp, lgt, rim, sbm, sg
– 1st Ed Time Line (b5-mgp-1tl): s2, s3, s4, s5, s6
– 2nd Ed Time Line (b5-mgp-2tl): lr
– 2nd Ed Ship Plans (b5-mgp-2sp): v3
Super Heroes:
– Sentinels Comics (hs-sc): cr, sk
Star Wars Fantasy Flight Games
– Beginner (sw-ffg-b): ar, ee, fa, fd
– Age of Rebellion (sw-ffg-ar): cr, cm, da, fb, fo, ft, gmk, le, oa, sr, st
– Edge of the Empire (sw-ffg-ee): cr, br, bcr, dc, eu, fc, fh, gmk, jy, ln, mp, nd, sm, sf
– Force and Destiny (sw-ffg-fd): cr, cg, dh, ev, gh, gmk, kf, kp, np, ss, up
– Setting (sw-ffg-s): aa, cr, dr, gg, rs, ss
Online Resources (web): dWiki, pWiki, sWiki, vop
Library of Books
B5, d20 System, Pathfinder, SW

This site is constantly under revision, no blog posts are final as this is a work in progress place for me to develop my game settings and rules. Some posts might be placeholders for future content, so feel free to check back later for updated information.
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