“I'm Silk, a priestess in the service of the goddess Mila. I was captured by bandits and brought to this shrine. Please, take me away from here.”
—Silk's Recruitment quote
Silk (シルク Shiruku) is a playable character in Fire Emblem Gaiden. She is a sweet-tempered sister of Mila who was kidnapped by Thieves, who forced her into their Shrine. She is later rescued by Alm's group and becomes their healer. After the war, she headed to Rigel to heal the wounded.
Reach the end of the Thief Shrine on the world map. Silk will be in the last room, where you can talk with her to recruit her.
When considering the two Clerics that are obtained at the beginning of each route, Silk can be thought of as the Cleric with offense oriented support spells, while Jenny plays a more traditional defensive/healing support role.
There are 3 key spells that differentiate Silk and Jenny. The first is their Illusion spells. Jenny's Illusion spell is learned at level 4 and will spawn Soldiers, fairly weak units that are mainly used as distractions or to weaken enemy units; while Silk's Illusion spell is learned at level 18 and spawns Dread Fighters, which are much more powerful.
The second spell that differentiates the two Clerics is Silk's Warp spell. Warp gives Silk the ability to send adjacent units to any location on the map, allowing for a greater range of strategies and flexibility.
The third ability that differentiates the two Clerics is Jenny's Physic spell, which allows Jenny to heal a unit anywhere on the map. This makes keeping units alive in Celica's route easier since Jenny never has to put herself in danger to heal her allies. On Alm's route, Teeta can be recruited near the end of the game with the Physic ability already learned.
In order to aid the injured, she headed towards Rigel.
“I'm sorry, everyone...”