Some Khrait ships will carry secrets about in their cargo hold or in their ship chest. Once you have obtained one of these secrets it will look something like this:

vas vasool zeetar kon mihabid.

Sib vasools zeetar ka fo nigootosuk.

[AB]
A = 4 kionokeet
B = 2 teflacan, FRUND CULI

Since we do not speak Khraitese we will need to translate the spell into english.

To do this we need to be in a room with JUST ONE and only one kraken arm with no other MF corpse present, hold the note, and say "vas smurt".
You will now have a translated ship spell, in this example the translated secret will be

Summon Beast, vas vasool zeetar applies spell.
This summons a beast onto the ship.
[AB]
A = 4 sea termite
B = 2 seagriffin, STAND HERE
This secret spell expires: Tue Jan 9 00:00:00 2007

As you can see there is an expiry date on every ship spell. Do not attempt to use this spell it will fail. If a secret spell fails some very bad things could happen. Your ship could be critically damaged to almost sinking, it could flood, it could catch fire or even sink instantly. You could attract a swarm of baby serpent or nothing at all could happen.

To cast the spells summon beast you will need to place 4 termite corpses in the first room and to the east 2 seagriffon corpses. You must stand at the indicated location for the spell to succeed. When all is arranged as instructed by the secret spell, say the magic words.

MF corpses are large as such you can only store a finite quantity of each type in each room. It is recommended to store corpses of the same type in the same room in the gun rooms on the lower deck of your ship. This makes it possible to drag them out and into position on the main deck or the center of the lower deck in the order you need them to be to cast the spell.

The more complicated the spell is, the more corpses and rooms you will need for each spell.

CreateFog
Difficulty: Medium
Fog is created in the nearby area representing around 300X300 rooms. The fog starts and grows thicker, once reaching max density it will slowly start to decrease.

DispelFog
Difficulty: Medium
The fog in the nearby area is dispelled; it dissipates quickly.

SummonBeast
Difficulty: Medium
This spell summons a random mobfaction. This is usually done to try to geta specific corpse needed. This spell does not work instantly. It takes a minute or two before a new mobfaction appears. Note that this spell will do nothing if a ship is docked, grappled, or recently attacked another ship.

SummonSerpent
Difficulty: Hard
This spell attempts to summon a colossal serpent to your ship.

DispelStorm
Difficulty: Easy
Storms in the area are dispelled. Note that this will not affect storms from afar.

CreateMagicStorm
Difficulty: Easy
A magic storm is created over the ship. This is good when you need to regenerate stats faster.

DispelSerpent
Difficulty: Medium
All serpents in the world that consider your ship the enemy will consider your ship friendly. Note that this normally does not work for babies.

RepairShip
Difficulty: Hard
The whole ship is perfectly repaired. Note that this does not affect flooding or fires.

DouseShip
Difficulty: Easy
The ship fires are doused all over the ship.

SummonSeadragon
Difficulty: Easy
A free seadragon will come, by-passing the towns time limits.

SummonWind
Difficulty: Easy
A strong wind is summoned in the general direction your ship is heading towards. Wind is very unpredictable, once cast the wind will do what it normally would do, which is change.

CreateRainStorm
Difficulty: Easy
A rain storm is created over the ship. This is good for ship fires and other situations during adventures.

CreateFireStorm
Difficulty: Easy
A fire storm is created over the area.

SlowSerpents
Difficulty: Hard
This spell slows down all serpents within 100 distance by 1/2 for 20 minutes.

SpeedUpShip
Difficulty: Hard
This spell doubles the ship speed for 10 minutes.

DoubleExperience
Difficulty: Impossible
This spell doubles experience gained for the whole game for a day.