Ernest the Chicken

Starting out
Veronica wants you to find her fiancé, Ernest. She says he entered Draynor Manor and hasn't come back yet. Enter the manor. To find out what happened to him, climb up the stairs and keep going up the floors until you reach the top. Talk to the professor, who will explain that Ernest was turned into a chicken. To change him back, the professor says that he needs parts that were stolen and are somewhere in and around the manor.

Pressure gauge
To get the pressure gauge, you will need fish food and poison. Fish food is found on the second floor right beside the level-19 ghost's room, and poison is found on the ground floor near the kitchen (cooking range). Look for these two items, and when you've obtained them, head east on the ground floor to the exit and pick up the spade. Go outside the manor through the east door, and look for the fountain on the southwest corner of the manor. Use the poison with the fish food so that it becomes poisoned fish food. Use the poisoned fish food with the fountain to kill the piranhas in the water to grab the gauge. Then, search the fountain to get the gauge. If you don't use the poisoned food first, and search the fountain, you are hit for one damage regardless of armour or Prayer.

Rubber tube
Look for the compost on the west side of the manor. Use the spade with the compost, and you will get a key. Go back into the manor through the front entrance, and use the key with the door containing the room with the skeleton. If you're a low level (below 45 Combat), the skeleton will probably attack you. Just grab the tube and run out. If you are a high level (45 Combat or higher), the skeleton won't attack you.

Oil can
There is a secret room in the manor. In the westernmost room on the ground floor is a book case. Click on it to push it, and enter a secret room. Look for a ladder that leads downwards, and climb down it. You will be in the basement. There will be doors and switches around you. Follow these instructions to obtain the oil can. You will need to use your minimap.

'NOTE BELOW!! If you make a mistake when attempting the following, pull the levers until you can escape to the main room, then climb up the ladder and back down again.'
 * 1) Pull lever A, pull lever B then enter the north eastern door
 * 2) Pull lever D, enter the south western door, enter the southern door
 * 3) Pull lever A, pull lever B, enter the north western door, enter the western door, enter the northern door
 * 4) Pull lever F, pull lever E, enter the eastern door twice, pull lever C
 * 5) Enter the north western door, enter the western door, pull lever E enter the eastern door
 * 6) Enter the southern door twice, enter the western door

You will now be in the room containing the oil can. Grab it, and leave the basement. Once you have left the basement, pull the lever on the wall to exit out the room again.

Go all the way up to the top floor, and talk to the professor. Give him the items, and then Ernest will be turned back into a human. When Ernest is done talking, you will be done with the quest.

Rewards

 * 4 Quest points
 * 300 coins