function onTrade(player,npc,trade)
    if (player:getFreeSlotsCount() < 1) then
        player:PrintToPlayer("Not enough free space! This message is here to prevent item loss.");
        do return end;
    end
 
    local itemid = hasRelic(trade,2);
    local eventParams = {}; -- item1, item2, item3, num_items, currencytype, currencyamount, finalvar
    local currentRelic = player:getVar("RELIC_IN_PROGRESS"); -- Stores which item has been taken from the player
    local relicWait = player:getVar("RELIC_DUE_AT"); -- Stores time that relic can be retrieved after
    local relicDupe = player:getVar("RELIC_MAKE_ANOTHER"); -- Stores a value that the player has acknowledged they can't hold the item they want to make yet they're making it anyway.
    local count = trade:getItemCount();
    local gil = trade:getGil();
    local tradeOK = false;
 
    -- Starting a stage upgrade.
    -- No relics in progress, found a relic in the trade with other items, and (doesn't already own next stage, or (owns it and has acknowledged this is a bad idea))
    if (currentRelic == 0 and itemid ~= nil and gil == 0 and count > 1 and (player:hasItem(itemid+1) == false or (player:hasItem(itemid+1) == true and relicDupe == 1))) then
        eventParams = getRelicParameters(itemid);
 
        -- Stage 1->2 or 2->3, 3 items + relic itself
        if (count == eventParams[4] and trade:hasItemQty(eventParams[1],1) and trade:hasItemQty(eventParams[2],1) and
            trade:hasItemQty(eventParams[3],1) and trade:hasItemQty(itemid,1)) then
            tradeOK = true;
 
        -- Stage 3->4, just check for attestation + relic itself
        elseif (count == eventParams[4] and trade:hasItemQty(eventParams[1],1) and trade:hasItemQty(itemid,1)) then
            tradeOK = true;
 
        -- Stage 4->5, Shard + Necropschye + relic itself
        elseif (count == eventParams[4] and trade:hasItemQty(eventParams[1],1) and trade:hasItemQty(eventParams[2],1) and trade:hasItemQty(itemid,1)) then
            tradeOK = true;
        end
 
        -- Trade is valid, so set vars, complete trade, and give a CS
        if tradeOK == true then
            player:setVar("RELIC_IN_PROGRESS",itemid);
            player:tradeComplete();
            player:startEvent(11, itemid, eventParams[1], eventParams[2], eventParams[3], eventParams[5], eventParams[6], 0, eventParams[8]);
        end
 
    -- Already owns the next stage and hasn't acknowledged this is a bad idea yet.
    elseif (itemid ~= nil and relicDupe ~= 1 and player:hasItem(itemid+1) == true) then
        player:startEvent(20,itemid);
 
    -- Trading a new relic with one already in progress.     Offer cancellation.
    elseif (currentRelic ~= 0 and itemid ~= nil) then
        player:startEvent(87);
 
    -- Has turned in a relic and items, has not turned in currency (no wait), so they must be bringing currency, but not 10,000 piece
    elseif (currentRelic ~= 0 and relicWait == 0 and gil == 0 and itemid~=1451 and itemid~=1454 and itemid~=1457) then
        eventParams = getRelicParameters(currentRelic);
 
        -- Has currencyamount of currencytype, and nothing additional.  See below for Aegis, since it's different.
        if (count == eventParams[6] and trade:hasItemQty(eventParams[5],eventParams[6])) then
            tradeOK = true;
 
        -- Aegis uses all three currency types for the first 3 stages.  It has currencytype 0 in these situations.
        elseif (count == eventParams[6] * 3 and eventParams[5] == 0) then
            -- Has currencyamount of all three currencies
            if (trade:hasItemQty(1450,eventParams[6]) and trade:hasItemQty(1453,eventParams[6]) and trade:hasItemQty(1456,eventParams[6])) then
                if (eventParams[5] ~= 1451 and eventParams[5] ~= 1454 and eventParams[5] ~= 1457) then -- disallow trade of 10k piece, else the gob will eat it.
                    tradeOK = true;
                end
            end
        end
 
        -- Trade is valid, so set variables, complete the trade, and give a CS to acknowledge it.
        if (tradeOK == true) then
            -- Stage is stored in array value 7
 
            -- Stage 1->2, wait until next game day
            if (eventParams[7] == 1) then
                player:setVar("RELIC_DUE_AT",getMidnight());
 
            -- Stage 2->3, wait RELIC_2ND_UPGRADE_WAIT_TIME (604800s / 1 week default)
            elseif (eventParams[7] == 2) then
                player:setVar("RELIC_DUE_AT",os.time() + RELIC_2ND_UPGRADE_WAIT_TIME);
 
            -- Stage 3->4, wait RELIC_3RD_UPGRADE_WAIT_TIME (295200s / 3 days 10 hours default)
            elseif (eventParams[7] == 3) then
                player:setVar("RELIC_DUE_AT",os.time() + RELIC_3RD_UPGRADE_WAIT_TIME);
            end
 
            -- Begin currency theft workarounds...
            if (count == 1) then
                if (trade:hasItemQty(1451,1)) then
                    player:addItem(1451,1); -- R. Stripeshell
                    player:PrintToPlayer("You aren't supposed to actually trade it to the goblin.");
                elseif (trade:hasItemQty(1454,1)) then
                    player:addItem(1454,1); -- R. Goldpiece
                    player:PrintToPlayer("You aren't supposed to actually trade it to the goblin.");
                elseif (trade:hasItemQty(1457,1)) then
                    player:addItem(1457,1); -- 10,000 Byne Bill
                    player:PrintToPlayer("You aren't supposed to actually trade it to the goblin.");
                end
            end
            -- End currency theft workarounds...
 
            player:tradeComplete();
            player:startEvent(13, currentRelic, eventParams[5], eventParams[6], 0, 0, 0, 0, eventParams[8]);
        end
    end
 
end;