How many floors is their on fiery field on Pokemon mystery dungeon blue rescue team?

Fiery Field 30F

Boss: Entei

Reward: Red Wing (Fire from Entei on a Clear Wing)

After that is Lightinging Field

Lighting Field 30F

Boss : Raikou

Reward: *Something* Wing

After that is Rainwind Field

Rainwind Feld 30F

Boss: Suicune

Reward: Rainbow Wing

After that you fight the MIRAGE POKEMON

Mt.Faraway 40F

Boss: Ho-oh

Reward: Congrats!You beat the mirage Pokemon!

*Tip*Buy Rainbow Peak and Sacred Field friend are and all 4 Pokemon will join ur team on the first kill.

Now talk to Alakazam in Pokemon Square then go to Legendary Island (Now you can go to Silver trench if you have Articuno Zapdos and Moltres)

Silver Trench 99F

Boss: Lugia

Reward: Recruition After you beat lugia.

EDIT: you do not need Entei, Raikou and Suicune to go to silver trench, you just need Articuno, Moltres and Zapdos. then you can talk to Alakazam and you can go.