Crafting the Celestial Observatory

The Bazaar:

• 14 Polymorph Ninja Treasure Cards: in the Bazaar amongst the other Astral TCs.
• 42 Fish Fins: There were 66 available in the Bazaar when I checked. I bought them all though 😉 Other options: you can transmute Fish Fin from Scales, of which there were 97 available in the Bazaar when I checked. The plant Maelstrom Snap Dragon drops Fish Fins, but I have no personal experience with it. If you have access to a Spiral Cup gauntlet, I have gotten fairly many Fish Fins from there.

Reagent Vendor:

• 14 Perfect Peridots: Can be bought from the Reagent Vendors in Celestia, Zafaria, Avalon and Azteca. None were available in the Bazaar when I checked.
• 14 Glass Vials: Reagent Vendors in every world up from Marleybone sell Glass Vials. None were available in the Bazaar when I checked.

Gardening (or a little help from friends):

• 28 Sunstones: the traditional way to get Sunstones is long: transmuting Stone Blocks into Sandstone, and Sandstone into Sunstone. However, Sandstone is easier to get in the Bazaar than it used to be, so you could try that route. Another option is to ask a friend that gardens Deadly Helephant Ears or Evil Magma Peas to sell some for you. These plants drop both Sandstone and Sunstone, though Sandstone is much more common. The transmute recipes can be bought from Kimba Kalla (Floating Land, CL) and Avery Templeton (Base Camp, CL).
• 70 Pearls: This is another reagent you probably have plenty of, if you garden Evil Magma Peas or Deadly Helephant Ears. Other options: Pearls can be transmuted from Black Lotus with the recipe sold by Kimba Kalla (Floating Land, CL) or Avery Templeton (Celestia Base Camp). Some people with too much time on their hands collect Pearls in the Portico in Celestia. In Avalon there are some in Deepwater and Lake Shore. Personally I would ask a friend who gardens to sell some for me.

Transmute:

• 28 Black Pearls: These can be transmuted from Black Lotus with the recipe sold by Kimba Kalla (Floating Land, CL) or Toshio (Jade Palace, MS). Black Lotus can be collected in Mooshu (for more information, read this guide). You COULD try the Bazaar and might get lucky.

The Bazaar:

• 8 Golden Pearls: When I checked, there were 485 Golden Pearls available in the Bazaar. If they’ve run out, ask a friend that gardens Deadly Helephant Ears or Evil Magma Peas to sell some for you.
• 24 Aethers: When I checked, there were 448 Aether available in the Bazaar. If they’ve run out, you can transmute Aether from Kelp with the recipe from Avery Templeton or Kimba Kalla in Celestia. Kelp is also available in the Bazaar nowadays.
• 80 Acorns: This might take you a while, because 80 Acorns is a LOT! Luckily, this reagent can be found in Darkmoor nowadays, as a rare drop from Mistwood. When I checked, there were 198 Acorns available in the Bazaar. You can transmute Acorns from Mistwood using the recipe from Eudora Tangletree (WC), Avery Templeton (CL) and Kimba Kalla (CL). You can also do Winterbane Hall, where most of the bosses drop Acorns.
• 20 Fish Fins: There were 66 available in the Bazaar when I checked. A few hours later, I checked again, and there were 406 available. Other options: you can transmute Fish Fin from Scales, of which there were 97 available in the Bazaar when I checked. The plant Maelstrom Snap Dragon drops Fish Fins, but I have no personal experience with it. If you have access to a Spiral Cup gauntlet, I have gotten fairly many Fish Fins from there.

Reagent Vendor:

• 4 Perfect Sapphires: sold by the Reagent Vendors in Celestia, Zafaria, Avalon and Azteca.
• 4 Crystal Vials: sold by the Reagent Vendors in Mooshu, Dragonspyre, Celestia, Wysteria, Zafaria, Avalon and Azteca.

The Archivist:

• 4 Gargantuan TCs: The Archivist in District of the Stars, Celestia for 500 gold. (I would buy 5 Unstoppable TC and 8 Monstrous TC at the same time, because you need them for other parts of this recipe)

The Bazaar:

• 32 Fish Fins: I’d just refresh the Bazaar for a little while until I’d have enough. Other options: you can transmute Fish Fin from Scales, of which there were 97 available in the Bazaar when I checked. The plant Maelstrom Snap Dragon drops Fish Fins, but I have no personal experience with it. If you have access to a Spiral Cup gauntlet, I have gotten fairly many Fish Fins from there.
• 80 Fire Blossoms: There were 216 of these available in the Bazaar when I checked. If there aren’t enough, you can transmute Fire Blossom from Lava Lillies with the recipe from Balthazar Dragonthorn (Atheneum, Dragonspyre), Avery Templeton (Celestia Base Camp) or Kimba Kalla (Floating Land, Celestia). There were 165 Lava Lillies available in the Bazaar when I checked.

Reagent Vendor:

• 8 Shadow Oil: Sold by the Reagent Vendors in all worlds up from Krokotopia. There were 12 available in the Bazaar when I checked, so it might be worth checking there too.
• 8 Pristine Vial: Sold by the Reagent Vendors in Celestia, Zafaria, Avalon and Azteca. None were available in the Bazaar when I checked.

The Archivist:

• 8 Monstrous TCs: The Archivist in District of the Stars, Celestia 250 gold.

Gardening (or a little help from friends):

• 24 Sunstones: as I said above, transmuting Sunstones form Stone Blocks takes time. Sandstone is easier to get in the Bazaar than it used to be, so you could try that route. Another option is to ask a friend that gardens Deadly Helephant Ears or Evil Magma Peas to sell some for you. These plants drop both Sandstone and Sunstone, though Sandstone is much more common. The transmute recipes can be bought from Kimba Kalla (Floating Land, CL) and Avery Templeton (Base Camp, CL).
• 70 Pearls: Gardening Evil Magma Peas or Deadly Helephant Ears is easy way to get these. Other options: Pearls can be transmuted from Black Lotus with the recipe sold by Kimba Kalla (Floating Land, CL) or Avery Templeton (Celestia Base Camp). Some people with too much time on their hands collect Pearls in the Portico in Celestia. In Avalon there are some in Deepwater and Lake Shore. Personally I would ask a friend who gardens to sell some for me.