See the Spells reference section for spell information.

Details of the active/selected spell are copied into a working buffer at EBC5.

The 8 bytes preceding the spell name text are as follows:

Byte	Value
1	Set to 16 if this spell has been acquired
2	Energy cost of casting (certain) spells 'Effect' spells (e.g. SHIELD, UNSEEN) - energy drain amount Healing spells (e.g. ENERGIZE, CHALICE) - energy restoration amount. Negative numbers (bit 7 set) = 'negative drain'
3	Spell type: 1 = MOVE spell 2 = Spell that generates a controllable graphic/icon, e.g. SERVANT, MISSILE, OPEN 3 = Assigned to the ELECTRIC and FLAME spells 4 = Ongoing effect spell (e.g. SHIELD, WRAITHBANE), spell name appears in bottom right mini-scroll 5 = Instant effect spell e.g. ENERGIZE, FREEZE, PORTAL
4	Number of uses (255 indicates infinite use - MOVE/AMULET/W BANE/CHALICE)
5	Used to store the character number within the string of the current spell message text (stored in the spell data buffer at EBC9)
6	Value representing action to take when FIRE pressed with a servant/cursor icon spell active (checked at D820 and E9ED). Also represents the event value for spells that have an effect when the cursor is moved onto room objects, e.g. SERVANT = 5, UNLOCK = 4, DISPEL = 2 Bit 7 is set for missile-type spells
7	Graphics number - address pointer offset for the icon graphic to use for this spell, in the graphic address table at 97C3 (icon graphics from A17E)
8	Graphics number - address pointer offset (for graphic addresses at 97C3) for the spell's controllable graphic/aiming cursor (or 0 if a spell doesn't need one). For the SERVANT spell, offset is 41 (graphics pointer 9813 pointing to servant graphics at A0DC) For all other 'aiming cursor' spells (e.g. UNLOCK, MISSILE, OPEN, FIND, ICEBOLT) spell offset is 43 (graphics pointer 9817 pointing to blinking eye cursor graphics at A105)

See the table of character byte values for a translation of letters-to-numbers.